NURS-6501N Midterm Exam (4 Versions, 400 Q & A, 2021) / NURS 6501 Midterm Exam / NURS6501 Midterm Exam / NURS6501N Midterm Exam: |100 % Verified and Correct Answers|

NURS-6501N Midterm Exam (4 Versions, 400 Q & A, 2021) / NURS 6501 Midterm Exam / NURS6501 Midterm Exam / NURS6501N Midterm Exam: |100 % Verified and Correct Answers| NURS 6501 Midterm Exam (4 Versions, 300 Q & A, 2020 / 2021) / NURS 6501N Midterm Exam / NURS6501 Midterm Exam / NURS6501N Midterm Exam Question 1 1 out of 1 points What is the blood type of a person who is heterozygous, having A and B alleles as codominant? Selected Answer: AB Question 2 1out of 1 poin The data reporting that sickle cell disease affects approximately 1 in 600 American blacks is an example of which concept? Selected Answer: Incidence prevalence ratio risk Question 3 1out of 1 points A patient is having a spirometry measurement done and asks the healthcare professional to explain this test. What response by the professional is best? Selected Answer: To measure the volume and flow rate during forced expiration Question 4 1 out of 1 points A healthcare professional is caring for a patient undergoing chemotherapy. What is the skin-related health risk the professional should assess the patient for and be prepared to treat? Selected Answer: Infection Question 5 1 out of 1 points A professor has taught the students about the sources of increased ammonia in patients with hepatic encephalopathy. What statement by a student indicates the professor should review this material? Selected Answer: Accumulation of short-chain fatty acids are a source of increased ammonia. Question 6 1out of 1 points What is the second most commonly recognized genetic cause of intellectual disability? Selected Answer: Fragile X syndrome Question 7 1 out of 1 points What is the role of reverse transcriptase in HIV infection? Selected Answer: It converts RNA into double-stranded DNA. Question 8 Which renal change is found in older adults? 1 out of 1 points Selected Answer: Decrease in the number of nephrons Question 9 1 out of 1 points In regulating vascular mediators released from mast cells, the role of eosinophils is to release what? Selected Answer: Histaminase, which limits the effects of histamine during acute inflammation Question 10 1 out of 1 points Under anaerobic conditions, what process provides energy for the cell? Selected Answer: Glycolysis Question 11 1 out of 1 points A patient had a motor vehicle crash and suffered critical injuries to the brainstem. What physiological responses would the healthcare professional expect to see? Selected Answer: Pulse and blood pressure changes Question 12 1 out of 1 points A parent wants to know how to prevent type 1 diabetes in the newborn. The healthcare professional explains that prevention is not possible, because which of these is a major characteristic of type 1 diabetes mellitus? Selected Answer: An autoimmune cause factor Question 13 1out of 1 points A patient has a pulmonary capillary wedge pressure of 30mmHg. What assessment finding by the healthcare professional would be most consistent with this reading? Selected Answer: Pink, frothy sputum Question 14 1out of 1 points A patient is having an IgE-mediated hypersensitivity reaction. What action by the healthcare professional is best? Selected Answer: Give the patient an antihistamine. Question 15 1 out of 1 points A healthcare professional is educating a patient on asthma. The professional tells the patient that the most successful treatment for chronic asthma begins with which action? Selected Answer: Avoidance of the causative agent Question 16 1 out of 1 points A student asks the healthcare professional to explain the pathophysiologic process of alcoholic cirrhosis. What statement by the professional would not be consistent with complete knowledge about this process? Selected Answer: Inflammation and damage leading to cirrhosis begin in the bile canaliculi. Question 17 1out of 1 points The pathophysiologic process of edema is related to which mechanism? Selected Answer: Lymphatic obstruction Question 18 1out of 1 points How does progressive nephron injury affect angiotensin II activity? Selected Answer: Angiotensin II activity is elevated. Question 19 1 out of 1 points A student asks the professor to explain what effect natriuretic peptides have during heart failure when the heart dilates. Which response by the professor is best? Selected Answer: Inhibits renin and aldosterone Question 20 When renin is released, it is capable of which action? 1out of 1 points Selected Answer: Formation of angiotensin I Question 21 1out of 1 points What is the initiating event that leads to the development of atherosclerosis? Selected Answer: Injury to the endothelial cells that line the artery walls Question 22 1 out of 1 points The glomerular filtration rate is directly related to which factor? Selected Answer: Perfusion pressure in the glomerular capillaries Question 23 1 out of 1 points What mechanisms occur in the liver cells as a result of lipid accumulation? Selected Answer: Increased synthesis of triglycerides from fatty acids and decreased synthesis of apoproteins Question 24 1 out of 1 points A person wants to know if eating only plant-based foods is advisable as a way to cut cholesterol to near-zero levels. What response by the health care professional is best? Selected Answer: No, many hormones are made from cholesterol. Question 25 1 out of 1 points The Bainbridge reflex is thought to be initiated by sensory neurons in which cardiac location? Selected Answer: Atria Question 26 1out of 1 points A patient has a serum sodium level of 165 mEq/L. The healthcare professional explains that the clinical manifestations of confusion, convulsions, cerebral hemorrhage, and coma are caused by what mechanism? Selected Answer: High sodium in the brain cells pulls water out of the blood vessels into the brain cells, causing them to swell. Question 27 1out of 1 points A person has hypothyroidism. What chemical does the healthcare professional advise the person to include in the diet? Selected Answer: Iodine Question 28 1 out of 1 points During the cardiac cycle, why do the aortic and pulmonic valves close after the ventricles relax? Selected Answer: Blood fills the cusps of the valves and causes the edges to merge, closing the valves. Question 29 1 out of 1 points If a patient develops acidosis, the nurse would expect the oxyhemoglobin dissociation curve to react in which manner? Selected Answer: Shift to the right, causing more oxygen (O 2) to be released to the cells Question 30 What does vomiting-induced metabolic alkalosis cause? 1 out of 1 points Selected Answer: Retention of bicarbonate to maintain the anion balance Question 31 What is one function of the tumor cell marker? 1 out of 1 points Selected Answer: To screen individuals at high risk for cancer Question 32 1 out of 1 points A patient suffered multiple traumatic injuries and received many blood transfusions within a few days of the injuries. For which medical condition should the healthcare professional monitor the patient for? Selected Answer: Hemosiderosis Question 33 1 out of 1 points A pregnant woman has Graves disease. What test/s does the healthcare professional advise the woman about? Selected Answer: Blood test for hyperthyroidism Question 34 1 out of 1 points A healthcare professional is caring for a patient who has a delay in electrical activity reaching the ventricle as seen on ECG. What ECG finding would the healthcare professional associate with this problem? Selected Answer: PR interval measuring 0.28 sec Question 35 1 out of 1 points A healthcare professional tells a student that a patient has lost atrial kick. What would the student expect to see when examining this patient? Selected Answer: Signs of decreased cardiac output Question 36 1 out of 1 points A patient has diabetes mellitus. A recent urinalysis showed increased amounts of protein. What therapy does the healthcare provider educate the patient that is specific to this disorder? Selected Answer: More frequent blood glucose monitoring Question 37 1 out of 1 points A healthcare professional is caring for four patients. Which patient does the professional assess for neurogenic diabetes insipidus (DI)? Selected Answer: Posterior pituitary trauma Question 38 How do free radicals cause cell damage? 1out of 1 points Selected Answer: Giving up an electron, which causes injury to the chemical bonds of the cell membrane Question 39 1out of 1 points A student studying biology asks the professor to describe how the ras gene is involved in cancer proliferation. What explanation by the professor is best? Selected Answer: A mutation in this gene allows continuous cell growth. Question 40 1 out of 1 points A patient has a peptic ulcer related to h. pylori bacteria. What treatment does the healthcare professional educate the patient on? Selected Answer: Antibiotic therapy Question 41 1 out of 1 points A patient in the hospital has hypernatremia. What condition should the healthcare professional assess for? Selected Answer: b. Hyper secretion of aldosterone Question 42 1out of 1 points A patient is in severe shock and is receiving vasopressin. A student asks the health care professional to explain the rationale for this treatment. What response by the professional is most accurate? Selected Answer: Antidiuretic hormone causes vasoconstriction to help increase blood pressure. Question 43 1out of 1 points A student is preparing to irrigate a patient's wound and gathers supplies, including hydrogen peroxide. What response by the health care professional is best? Selected Answer: Tell the student to get some normal saline instead. Question 44 1 out of 1 points A healthcare professional cares for older adults in a skilled nursing facility. What should the professional assess for in these individuals related to cardiovascular functioning? Selected Answer: Increased rate of falling and dizzy spells Question 45 1out of 1 points Which statement made by a student indicates the healthcare professional needs to describe the pericardium again? Selected Answer: The pericardium is a double-walled membranous sac that encloses the heart. Question 46 Where is two thirds of the body's water found? 1out of 1 points Selected Answer: Intracellular fluid compartments Question 47 1 out of 1 points A healthcare professional is caring for four patients. Which patient does the professional assess for pulmonary emboli (PE) as the priority? Selected Answer: Deep venous thrombosis Question 48 1out of 1 points A patient has been diagnosed with a renal stone. Based on knowledge of common stone types, what self-care measure does the healthcare professional plan to teach the patient when stone analysis has returned? Selected Answer: Ingest 1000 mg of calcium a day. Question 49 What is the inflammatory effect of nitric oxide (NO)? 1out of 1 points Selected Answer: Decreases mast cell function, and decreases platelet aggregation Question 50 What is the cause of familial hypercholesterolemia (FH)? 1 out of 1 points Selected Answer: Reduction in the number of low-density lipoprotein (LDL) receptors on cell surfaces Question 51 1 out of 1 points During acidosis, the body compensates for the increase in serum hydrogen ions by shifting hydrogen ions into the cell in exchange for which electrolyte? Selected Answer: Potassium Question 52 Which chamber of the heart endures the highest pressures? 1 out of 1 points Selected Answer: Left ventricle Question 53 1 out of 1 points When endothelial cells are injured, what alteration contributes to atherosclerosis? Selected Answer: Cells are unable to make the normal amount of vasodilating cytokines. Question 54 What is the cause of functional dysphagia? 1 out of 1 points Selected Answer: Neural or muscular disorders Question 55 1out of 1 points A patient diagnosed with diabetic ketoacidosis (DKA) has the following laboratory values: arterial pH 7.20; serum glucose 500 mg/dL; positive urine glucose and ketones; serum potassium (K +) 2 mEq/L; serum sodium (Na +) 130 mEq/L. The patient reports that he has been sick with the flu for 1 week. What relationship do these values have to his insulin deficiency? Selected Answer: Decreased glucose use causes fatty acid use, ketogenesis, metabolic acidosis, and osmotic diuresis. Question 56 What is one function of the tumor cell marker? 1out of 1 points Selected Answer: To screen individuals at high risk for cancer Question 57 1out of 1 points A student asks about the mechanism that results in type II hypersensitivity reactions. What description by the professor is best? Selected Answer: Cytotoxic T lymphocytes or lymphokine-producing helper T 1 cells directly attack and destroy cellular targets. Question 58 1out of 1 points What physical sign does the healthcare professional relate to the result of turbulent blood flow through a vessel? Selected Answer: Murmur heard on auscultation Question 59 1 out of 1 points Which hormone is required for water to be reabsorbed in the distal tubule and collecting duct? Selected Answer: Antidiuretic hormone Question 60 1 out of 1 points A patient asks the healthcare professional why tissue damage occurs in acute rejection after organ transplantation. What response by the professional is best? Selected Answer: Th1 cells release cytokines that activate infiltrating macrophages, and cytotoxic T cells directly attack the endothelial cells of the transplanted tissue. Question 61 What are blood pressure variations associated with? 1 out of 1 points Selected Answer: The renin-angiotensin system's effect on vasoconstriction Question 62 1 out of 1 points A class of students has learned about contributing factors to duodenal ulcers. What statement indicates to the professor that the students need a review? Selected Answer: Gastric emptying is slowed, causing greater exposure of the mucosa to acid. Question 63 1 out of 1 points Renal failure is the most common cause of which type of hyperparathyroidism? Selected Answer: Secondary Question 64 1 out of 1 points An amniocentesis indicates a neural tube defect when an increase in which protein is evident? Selected Answer: Alpha fetoprotein Question 65 1 out of 1 points A healthcare professional wants to determine the adequacy of a person's alveolar ventilation. What assessment finding is most important for the professional to consider? Selected Answer: Arterial blood gas shows a PaCO 2 of 44 mmHg. Question 66 1 out of 1 points What is an expected change in the cardiovascular system that occurs with aging? Selected Answer: Arterial stiffening Question 67 Oxygenated blood flows through which vessel? 1 out of 1 points Selected Answer: Pulmonary veins Question 68 1 out of 1 points A patient's urinalysis came back positive for glucose. What does the healthcare professional expect the patient's blood glucose to be at a minimum? Selected Answer: 180 mg/dL Question 69 1 out of 1 points A student asks the healthcare professional to explain the function of the papillary muscles. What response by the professional is best? Selected Answer: These muscles prevent backward expulsion of the atrioventricular valves. Question 70 1out of 1 points The healthcare professional explains to a student that the amount of volume of blood in the heart is directly related to the of contraction. Selected Answer: strength Question 71 1out of 1 points A healthcare professional is caring for a patient who has continuous increases in left ventricular filing pressures. What disorder would the professional assess the patient for? Selected Answer: Pulmonary edema Question 72 1 out of 1 points What pathologic change occurs to the kidney's glomeruli as a result of hypertension? Selected Answer: Ischemia of the tubule Question 73 1 out of 1 points A student asks why some vaccinations are given orally and some are given by injection. What response by the professor is best? Selected Answer: Each route stimulates a different lymphocyte-containing tissue, resulting in different types of cellular and humoral immunity. Question 74 1out of 1 points A patient has a history of excessive use of magnesium-containing antacids and aluminum-containing antacids. What lab value does the healthcare professional correlate to this behavior? Selected Answer: Phosphate 1.9 mg/dL Question 75 1out of 1 points A student asks the healthcare professional to describe exotoxins. Which statement by the professional is best? Selected Answer: Exotoxins are released during bacterial growth. Question 76 What are tumor cell markers? 1 out of 1 points Selected Answer: Hormones, enzymes, antigens, and antibodies that are produced by cancer cells Question 77 1 out of 1 points The acute inflammatory response is characterized by fever that is produced by the hypothalamus being affected by what? Selected Answer: Endogenous pyrogens Question 78 1 out of 1 points A healthcare professional is educating a patient about asthma. The professional states that good control is necessary due to which pathophysiologic process? Selected Answer: Uncontrolled inflammation leads to increased bronchial hyperresponsiveness and eventual scarring. Question 79 1 out of 1 points The student asks the professor to explain what characteristic is demonstrated by lungs with decreased compliance? Selected Answer: stiffness Question 80 1 out of 1 points The action of platelet-derived growth factor is to stimulate the production of which cells? Selected Answer: Platelets Question 81 1out of 1 points A healthcare professional tells the student that a properly placed endotracheal tube for mechanical ventilation is 5 to 7 cm above the tracheal bifurcation. Where does this bifurcation occur? Selected Answer: Bronchi Question 82 1out of 1 points Surfactant produced by type II alveolar cells facilitates alveolar distention and ventilation by which mechanism? Selected Answer: Decreasing surface tension in the alveoli Question 83 1 out of 1 points A patient is brought to the Emergency Department with a gunshot wound to the chest. The healthcare professional assesses an abnormality involving a pleural rupture that acts as a one-way valve, permitting air to enter on inspiration but preventing its escape by closing during expiration. What action by the healthcare professional is the priority? Selected Answer: Assist with a chest tube insertion. Question 84 1out of 1 points A professor has taught the students about the pathogenesis of abdominal pain. Which statement by a student indicates the professor needs to review the material? Selected Answer: Low concentrations of anaerobes, such as Streptococci, Lactobacilli, Staphylococci, Enterobacteria, and Bacteroides, produce abdominal pain. Question 85 1out of 1 points People diagnosed with neurofibromatosis have varying degrees of the condition because of which genetic principle? Selected Answer: Expressivity Question 86 1out of 1 points A student asks the professor how a faulty negative-feedback mechanism results in a hormonal imbalance. What response by the professor is best? Selected Answer: Excessive hormone production results from a failure to turn Question 87 0 out of 1 points A healthcare professional is working with a person who drinks several 6-packs of beer a week. What testing does the professional encourage the person to get? Selected Answer: Hepatic function Question 88 1 out of 1 points Which characteristic is the most important determinant of immunogenicity when considering the antigen? Selected Answer: Foreignness Question 89 1 out of 1 points A patient has portal hypertension-induced splenomegaly. Which lab value would the healthcare professional associate with this condition? Selected Answer: Low platelet count Question 90 1 out of 1 points Why is leakage of lysosomal enzymes during chemical injuries significant? Selected Answer: Enzymatic digestion of the nucleus and nucleolus occurs, halting DNA synthesis. Question 91 1 out of 1 points What is the most important cause of pulmonary artery constriction? Selected Answer: Low alveolar partial pressure of arterial oxygen (PaO 2) Question 92 Autocrine stimulation is the ability of cancer cells to do what? 1 out of 1 points Selected Answer: Secrete growth factors that stimulate their own growth Question 93 1 out of 1 points Neurotransmitters affect the postsynaptic membrane by binding to which structure? Selected Answer: Receptors Question 94 1 out of 1 points A healthcare provider notes that tapping the patient's facial nerve leads to lip twitching. What electrolyte value is correlated with this finding? Selected Answer: Ca ++: 8.2 mg/dL Question 95 1out of 1 points During cell injury caused by hypoxia, why does an increase in the osmotic pressure within the cell occur? Selected Answer: Sodium chloride enters the cell Question 96 1out of 1 points A female patient has been diagnosed with an uncomplicated urinary tract infection. What self-care measure does the healthcare provider teach the patient that is specific to this type of infection? Selected Answer: After using the bathroom, wipe from front to back. Question 97 1 out of 1 points A healthcare professional is conducting community education on vaccinations. Which statement about vaccines does the professional include in the presentation? Selected Answer: Most viral vaccines are made by using dead organisms. Question 98 1 out of 1 points A patient reports dumping syndrome after a partial gastrectomy. What does the healthcare professional teach this patient? Selected Answer: Eat small, frequent high-protein meals. Question 99 1 out of 1 points Once they have penetrated the first line of defense, which microorganisms do natural killer (NK) cells actively attack? Selected Answer: mycoplasma Question 100 1 out of 1 points Free radicals play a major role in the initiation and progression of which diseases? Selected Answer: Cardiovascular diseases such as hypertension and ischemic heart disease NURS 6501 Midterm Exam Course NURS-6501N-32,Advanced Pathophysiology.2020 Spring Qtr 02/24-05/17-PT27 Test Exam - Week 6 Midterm Started 4/4/20 3:01 PM Submitted 4/4/20 5:01 PM Due Date 4/6/20 1:59 AM Status Completed Attempt Score 98 out of 100 points ADVANCED PATHOPHYSIOLOGY MIDTERM- SPRING 2020 • Question 1 1 out of 1 points When endothelial cells are injured, what alteration contributes to atherosclerosis? Selected Answer: Cells are unable to make the normal amount of vasodilating cytokines. • Question 2 1 out of 1 points A patient has been diagnosed with an empyema. What does the healthcare professional tell the patient about this condition? Selected Answer: We will have to drain the pus out of your pleural space. • Question 3 1 out of 1 points A patient has been admitted for a possible small intestinal obstruction. What is the first sign the healthcare professional assesses for that would indicate the presence of this condition? Selected Answer: Vomiting • Question 4 1 out of 1 points Autocrine stimulation is the ability of cancer cells to do what? Selected Answer: Secrete growth factors that stimulate their own growth • Question 5 1 out of 1 points A patient had a myocardial infarction that damaged the SA node, which is no longer functioning as the pacemaker of the heart. What heart rate would the healthcare provider expect the patient to have? Selected Answer: 40 to 60 beats/min • Question 6 1 out of 1 points Which type of immunity is produced by an individual after either natural exposure to the antigen or after immunization against the antigen? Selected Answer: Active-acquired immunity • Question 7 1 out of 1 points In teaching a women's community group, which risk factor does the healthcare professional teach is related to high morbidity of cancer of the colon, uterus, and kidney? Selected Answer: Women who have a high body mass index • Question 8 1 out of 1 points A student asks the healthcare professional to describe exotoxins. Which statement by the professional is best? Selected Answer: Exotoxins are released during bacterial growth • Question 9 1 out of 1 points A student studying biology asks the professor to describe how the ras gene is involved in cancer proliferation. What explanation by the professor is best? Selected Answer: A mutation in this gene allows continuous cell growth. • Question 10 1 out of 1 points A healthcare professional cares for older adults in a skilled nursing facility. What should the professional assess for in these individuals related to cardiovascular functioning? Selected Answer: Increased rate of falling and dizzy spells • Question 11 1 out of 1 points A healthcare professional is educating a patient on asthma. The professional tells the patient that the most successful treatment for chronic asthma begins with which action? Selected Answer: Avoidance of the causative agent • Question 12 1 out of 1 points A healthcare professional is conducting community education on vaccinations. Which statement about vaccines does the professional include in the presentation? Selected Answer: Most viral vaccines are made by using dead organisms. • Question 13 1 out of 1 points Renal failure is the most common cause of which type of hyperparathyroidism? Selected Answer: Secondary • Question 14 1 out of 1 points Which renal change is found in older adults? Selected Answer: Decrease in the number of nephrons • Question 15 1 out of 1 points What is the single most common cause of cellular injury? Selected Answer: Hypoxic injury • Question 16 1 out of 1 points What organic compound facilitates transportation across cell membranes by acting as receptors, transport channels for electrolytes, and enzymes to drive active pumps? Selected Answer: Proteins • Question 17 1 out of 1 points In regulating vascular mediators released from mast cells, the role of eosinophils is to release what? Selected Answer: Histaminase, which limits the effects of histamine during acute inflammation • Question 18 1 out of 1 points A patient in the clinic reports projectile vomiting without nausea or other gastrointestinal symptoms. What action by the healthcare professional is most appropriate? Selected Answer: Administer intravenous hydration. • Question 19 1 out of 1 points What does vomiting-induced metabolic alkalosis cause? Selected Answer: Retention of bicarbonate to maintain the anion balance • Question 20 1 out of 1 points A patient diagnosed with diabetic ketoacidosis (DKA) has the following laboratory values: arterial pH 7.20; serum glucose 500 mg/dL; positive urine glucose and ketones; serum potassium (K +) 2 mEq/L; serum sodium (Na +) 130 mEq/L. The patient reports that he has been sick with the flu for 1 week. What relationship do these values have to his insulin deficiency? Selected Answer: Decreased glucose use causes fatty acid use, ketogenesis, metabolic acidosis, and osmotic diuresis. • Question 21 1 out of 1 points A student asks the professor how a faulty negative-feedback mechanism results in a hormonal imbalance. What response by the professor is best? Selected Answer: . Excessive hormone production results from a failure to turn • Question 22 1 out of 1 points The acute inflammatory response is characterized by fever that is produced by the hypothalamus being affected by what? Selected Answer: Endogenous pyrogens • Question 23 1 out of 1 points A student asks the professor to differentiate Type 2 diabetes mellitus from Type 1. The professors' response would be that Type 2 is best described as what? Selected Answer: Resistance to insulin by insulin-sensitive tissues • Question 24 1 out of 1 points A student asks about the mechanism that results in type II hypersensitivity reactions. What description by the professor is best? Selected Answer: Cytotoxic T lymphocytes or lymphokine-producing helper T 1 cells directly attack and destroy cellular targets. • Question 25 1 out of 1 points A healthcare professional is educating a patient about asthma. The professional states that good control is necessary due to which pathophysiologic process? Selected Answer: Uncontrolled inflammation leads to increased bronchial hyperresponsiveness and eventual scarring. • Question 26 1 out of 1 points What is the role of the normal intestinal bacterial flora? Selected Answer: Metabolizing bile salts, estrogens, and lipids • Question 27 1 out of 1 points An amniocentesis indicates a neural tube defect when an increase in which protein is evident? Selected Answer: Alpha fetoprotein • Question 28 1 out of 1 points Oxygenated blood flows through which vessel? Selected Answer: Pulmonary veins • Question 29 1 out of 1 points A patient is having an IgE-mediated hypersensitivity reaction. What action by the healthcare professional is best? Selected Answer: Give the patient an antihistamine. • Question 30 1 out of 1 points Which normal physiologic change occurs in the aging pulmonary system? Selected Answer: Stiffening of the chest wall • Question 31 1 out of 1 points A patient's chart indicates Kussmaul respirations. The student asks the healthcare professional what this is caused by. What response by the professional is most accurate? Selected Answer: A compensatory measure is needed to correct metabolic acidosis. • Question 32 1 out of 1 points A patient asks the healthcare professional why tissue damage occurs in acute rejection after organ transplantation. What response by the professional is best? Selected Answer: Th1 cells release cytokines that activate infiltrating macrophages, and cytotoxic T cells directly attack the endothelial cells of the transplanted tissue. • Question 33 1 out of 1 points A patient asks the healthcare professional to describe the cause of gastroesophageal reflux disease (GERD). What response by the professional is best? Selected Answer: Excessive production of hydrochloric acid • Question 34 1 out of 1 points What is the inflammatory effect of nitric oxide (NO)? Selected Answer: Decreases mast cell function, and decreases platelet aggregation • Question 35 1 out of 1 points A healthcare professional is caring for a patient undergoing chemotherapy. What is the skin-related health risk the professional should assess the patient for and be prepared to treat? Selected Answer: Infection • Question 36 1 out of 1 points Which chamber of the heart endures the highest pressures? Selected Answer: Left ventricle • Question 37 1 out of 1 points A healthcare professional is caring for a patient who has continuous increases in left ventricular filing pressures. What disorder would the professional assess the patient for? Selected Answer: Pulmonary edema • Question 38 1 out of 1 points A healthcare professional is assessing a child whose parents report poor grades in school, trouble paying attention, and naughty behaviors that have become so frequent the child is always in trouble. For which health condition should the professional facilitate testing? Selected Answer: Lead poisoning • Question 39 1 out of 1 points It has been determined that a patient's tumor is in stage 2. How does the healthcare professional describe this finding to the patient? Selected Answer: Cancer is locally invasive. • Question 40 1 out of 1 points A professor has taught the students about the pathogenesis of abdominal pain. Which statement by a student indicates the professor needs to review the material? Selected Answer: Low concentrations of anaerobes, such as Streptococci, Lactobacilli, Staphylococci, Enterobacteria, and Bacteroides, produce abdominal pain. • Question 41 1 out of 1 points A patient has a peptic ulcer related to h. pylori bacteria. What treatment does the healthcare professional educate the patient on? Selected Answer: Antibiotic therapy • Question 42 1 out of 1 points What effect is a result of inhibiting the parasympathetic nervous system with a drug such as atropine? Selected Answer: Salivation decreases. • Question 43 1 out of 1 points A student is preparing to irrigate a patient's wound and gathers supplies, including hydrogen peroxide. What response by the health care professional is best? Selected Answer: Tell the student to get some normal saline instead. • Question 44 1 out of 1 points Which cardiac chambers have the thinnest wall and why? Selected Answer: The right and left atria; they are low-pressure chambers that serve as storage units and conduits for blood. • Question 45 1 out of 1 points Free radicals play a major role in the initiation and progression of which diseases? Selected Answer: Cardiovascular diseases such as hypertension and ischemic heart disease • Question 46 1 out of 1 points A student asks why carbon monoxide causes tissue damage. What response by the professor is best? Selected Answer: Binds to hemoglobin so that it cannot carry oxygen • Question 47 1 out of 1 points The glomerular filtration rate is directly related to which factor? Selected Answer: Perfusion pressure in the glomerular capillaries • Question 48 1 out of 1 points What is one function of the tumor cell marker? Selected Answer: To screen individuals at high risk for cancer • Question 49 1 out of 1 points A patient has a pulmonary capillary wedge pressure of 30mmHg. What assessment finding by the healthcare professional would be most consistent with this reading? Selected Answer: Pink, frothy sputum • Question 50 1 out of 1 points A patient is in severe shock and is receiving vasopressin. A student asks the health care professional to explain the rationale for this treatment. What response by the professional is most accurate? Selected Answer: Antidiuretic hormone causes vasoconstriction to help increase blood pressure. • Question 51 1 out of 1 points What are blood pressure variations associated with? Selected Answer: The renin-angiotensin system's effect on vasoconstriction • Question 52 1 out of 1 points A person wants to know if eating only plant-based foods is advisable as a way to cut cholesterol to near-zero levels. What response by the health care professional is best? Selected Answer: No, many hormones are made from cholesterol. • Question 53 1 out of 1 points A student asks why some vaccinations are given orally and some are given by injection. What response by the professor is best? Selected Answer: Each route stimulates a different lymphocyte-containing tissue, resulting in different types of cellular and humoral immunity. • Question 54 1 out of 1 points A healthcare professional is working with a person who drinks several 6-packs of beer a week. What testing does the professional encourage the person to get? Selected Answer: Hepatic function • Question 55 1 out of 1 points Within a physiologic range, what does an increase in left ventricular end-diastolic volume (preload) result in? Selected Answer: Decrease in repolarization • Question 56 1 out of 1 points People diagnosed with neurofibromatosis have varying degrees of the condition because of which genetic principle? Selected Answer: Expressivity • Question 57 1 out of 1 points The data reporting that sickle cell disease affects approximately 1 in 600 American blacks is an example of which concept? Selected Answer: Incidence prevalence ratio risk • Question 58 1 out of 1 points A person has hypothyroidism. What chemical does the healthcare professional advise the person to include in the diet? Selected Answer: Iodine • Question 59 1 out of 1 points A patient has been diagnosed with a renal stone. Based on knowledge of common stone types, what self-care measure does the healthcare professional plan to teach the patient when stone analysis has returned? Selected Answer: Ingest 1000 mg of calcium a day. • Question 60 1 out of 1 points A professor has taught a student about skeletal alterations seen in chronic kidney disease. Which statement by the student indicates the professor needs to give more information? Selected Answer: The effectiveness of calcium and phosphate resorption from bone is impaired. • Question 61 1 out of 1 points What pathologic change occurs to the kidney's glomeruli as a result of hypertension? Selected Answer: Ischemia of the tubule • Question 62 1 out of 1 points A professor has taught the students about the sources of increased ammonia in patients with hepatic encephalopathy. What statement by a student indicates the professor should review this material? Selected Answer: Accumulation of short-chain fatty acids are a source of increased ammonia. • Question 63 1 out of 1 points What physical sign does the healthcare professional relate to the result of turbulent blood flow through a vessel? Selected Answer: Murmur heard on auscultation • Question 64 1 out of 1 points A student asks the professor how a faulty negative-feedback mechanism results in a hormonal imbalance. What response by the professor is best? Selected Answer: Excessive hormone production results from a failure to turn off the system. • Question 65 1 out of 1 points A class of students has learned about contributing factors to duodenal ulcers. What statement indicates to the professor that the students need a review? Selected Answer: Gastric emptying is slowed, causing greater exposure of the mucosa to acid. • Question 66 1 out of 1 points The action of platelet-derived growth factor is to stimulate the production of which cells? Selected Answer: Platelets • Question 67 1 out of 1 points What part of the kidney controls renal blood flow, glomerular filtration, and renin secretion? Selected Answer: Juxtaglomerular apparatus • Question 68 1 out of 1 points A patient has been diagnosed with primary emphysema but claims there is no history of smoking. What action by the healthcare professional is most appropriate? Selected Answer: Get baseline arterial blood gasses. • Question 69 1 out of 1 points The student asks the professor to explain what characteristic is demonstrated by lungs with decreased compliance? Selected Answer: stiffness • Question 70 0 out of 1 points The student wants information about a patient's renal function. What test does the healthcare professional tell the student to evaluate? Selected Answer: Serum blood urea nitrogen and creatinine • Question 71 1 out of 1 points Which hormone is required for water to be reabsorbed in the distal tubule and collecting duct? Selected Answer: Antidiuretic hormone • Question 72 1 out of 1 points When comparing the clinical manifestations of both diabetic ketoacidosis (DKA) and hyperglycemic hyperosmolar nonketotic syndrome (HHNKS), which condition is associated with only DKA? Selected Answer: Kussmaul respirations • Question 73 1 out of 1 points A patient had a thyroidectomy and now reports tingling around the mouth and has a positive Chvostek sign. What laboratory finding would be most helpful to the healthcare professional? Selected Answer: Serum calcium • Question 74 1 out of 1 points A parent wants to know how to prevent type 1 diabetes in the newborn. The healthcare professional explains that prevention is not possible, because which of these is a major characteristic of type 1 diabetes mellitus? Selected Answer: An autoimmune cause factor • Question 75 1 out of 1 points A student asks the healthcare professional to explain the function of the papillary muscles. What response by the professional is best? Selected Answer: These muscles prevent backward expulsion of the atrioventricular valves • Question 76 1 out of 1 points The Bainbridge reflex is thought to be initiated by sensory neurons in which cardiac location? Selected Answer: Atria • Question 77 1 out of 1 points A healthcare professional is caring for four patients. Which patient does the professional assess for neurogenic diabetes insipidus (DI)? Selected Answer: Posterior pituitary trauma • Question 78 1 out of 1 points A patient suffered multiple traumatic injuries and received many blood transfusions within a few days of the injuries. For which medical condition should the healthcare professional monitor the patient for? Selected Answer: Hemosiderosis • Question 79 1 out of 1 points A patient has portal hypertension-induced splenomegaly. Which lab value would the healthcare professional associate with this condition? Selected Answer: Low platelet count • Question 80 1 out of 1 points A healthcare professional tells a student that a patient has lost atrial kick. What would the student expect to see when examining this patient? Selected Answer: Signs of decreased cardiac output • Question 81 1 out of 1 points Which primary characteristic is unique for the immune response? Selected Answer: The immune response is specific to the antigen that initiates it. • Question 82 1 out of 1 points Why is leakage of lysosomal enzymes during chemical injuries significant? Selected Answer: Enzymatic digestion of the nucleus and nucleolus occurs, halting DNA synthesis. • Question 83 1 out of 1 points A healthcare provider notes that tapping the patient's facial nerve leads to lip twitching. What electrolyte value is correlated with this finding? Selected Answer: Ca ++: 8.2 mg/dL • Question 84 1 out of 1 points What are tumor cell markers? Selected Answer: Hormones, enzymes, antigens, and antibodies that are produced by cancer cells • Question 85 1 out of 1 points A Rh-negative woman gave birth to a Rh-positive baby. When discussing Rho[D] immunoglobulin with her, what information should the healthcare professional provide? Selected Answer: It prevents alloimmunity and hemolytic anemia of the newborn. • Question 86 1 out of 1 points If a patient develops acidosis, the nurse would expect the oxyhemoglobin dissociation curve to react in which manner? Selected Answer: Shift to the right, causing more oxygen (O 2) to be released to the cells • Question 87 1 out of 1 points What is the role of reverse transcriptase in HIV infection? Selected Answer: It converts RNA into double-stranded DNA. • Question 88 1 out of 1 points During acidosis, the body compensates for the increase in serum hydrogen ions by shifting hydrogen ions into the cell in exchange for which electrolyte? Selected Answer: Potassium • Question 89 1 out of 1 points A female patient has been diagnosed with an uncomplicated urinary tract infection. What self-care measure does the healthcare provider teach the patient that is specific to this type of infection? Selected Answer: After using the bathroom, wipe from front to back. • Question 90 1 out of 1 points During the cardiac cycle, why do the aortic and pulmonic valves close after the ventricles relax? Selected Answer: Blood fills the cusps of the valves and causes the edges to merge, closing the valves. • Question 91 1 out of 1 points What is the blood type of a person who is heterozygous, having A and B alleles as codominant? Selected Answer: AB • Question 92 1 out of 1 points Where is two thirds of the body's water found? Selected Answer: Intracellular fluid compartments • Question 93 0 out of 1 points The student asks the professor why water and electrolytes are transported in both directions through tight junctions and intercellular spaces rather than across cell membranes. What response by the professor is best? Selected Answer: A balance of cations and ions among the electrolytes on each side of the cell membranes cannot be maintained. • Question 94 1 out of 1 points A healthcare professional is assessing a child who has complete trisomy of the twenty-first chromosome. What findings does the professional relate to this condition? Selected Answer: An IQ of 25 to 70, low nasal bridge, protruding tongue, and flat, low-set ears • Question 95 1 out of 1 points A patient had a motor vehicle crash and suffered critical injuries to the brainstem. What physiological responses would the healthcare professional expect to see? Selected Answer: Pulse and blood pressure changes • Question 96 1 out of 1 points How do free radicals cause cell damage? Selected Answer: Giving up an electron, which causes injury to the chemical bonds of the cell membrane • Question 97 1 out of 1 points What is the only surface inside the nephron where cells are covered with microvilli to increase the reabsorptive surface area called? Selected Answer: Proximal convoluted tubules • Question 98 1 out of 1 points What causes the edema that occurs during the inflammatory process? Selected Answer: Increased capillary permeability • Question 99 1 out of 1 points After a partial gastrectomy, gastric bypass, or pyloroplasty, clinical manifestations that include increased pulse, hypotension, weakness, pallor, sweating, and dizziness are the results of which mechanism? Selected Answer: Rapid gastric emptying • Question 100 1 out of 1 points A patient has a history of excessive use of magnesium-containing antacids and aluminum-containing antacids. What lab value does the healthcare professional correlate to this behavior? Selected Answer: Phosphate 1.9 mg/dL NURS 6501 Midterm Exam Course NURS-6501N-32,Advanced Pathophysiology.2020 Spring Qtr 02/24-05/17-PT27 Test Exam - Week 6 Midterm Started 4/4/20 3:01 PM Submitted 4/4/20 5:01 PM Due Date 4/6/20 1:59 AM Status Completed Attempt Score 97 out of 100 points • Question 1 The action of platelet-derived growth factor is to stimulate the production of which cells? Selected Answer: Platelets • Question 2 1 out of 1 points A healthcare professional is educating a patient about asthma. The professional states that good control is necessary due to which pathophysiologic process? Selected Answer: Uncontrolled inflammation leads to increased bronchial hyperresponsiveness and eventual scarring. • Question 3 1 out of 1 points What is an expected change in the cardiovascular system that occurs with aging? Selected Answer: Arterial stiffening • Question 4 1 out of 1 points People diagnosed with neurofibromatosis have varying degrees of the condition because of which genetic principle? Selected Answer: Expressivity • Question 5 1 out of 1 points When endothelial cells are injured, what alteration contributes to atherosclerosis? Selected Answer: Cells are unable to make the normal amount of vasodilating cytokines. • Question 6 1 out of 1 points A healthcare professional cares for older adults in a skilled nursing facility. What should the professional assess for in these individuals related to cardiovascular functioning? Selected Answer: Increased rate of falling and dizzy spells • Question 7 1 out of 1 points What physical sign does the healthcare professional relate to the result of turbulent blood flow through a vessel? Selected Answer: Murmur heard on auscultation • Question 8 1 out of 1 points What are tumor cell markers? Selected Answer: Hormones, enzymes, antigens, and antibodies that are produced by cancer cells • Question 9 1 out of 1 points Once they have penetrated the first line of defense, which microorganisms do natural killer (NK) cells actively attack? Selected Answer: mycoplasma • Question 10 1 out of 1 points Which gastric hormone inhibits acid and pepsinogen secretion, as well as decreases the release of gastrin? Selected Answer: Somatostatin • Question 11 1 out of 1 points What is the single most common cause of cellular injury? Selected Answer: Hypoxic injury • Question 12 1 out of 1 points A professor has taught the students about the sources of increased ammonia in patients with hepatic encephalopathy. What statement by a student indicates the professor should review this material? Selected Answer: Accumulation of short-chain fatty acids are a source of increased ammonia. • Question 13 1 out of 1 points Surfactant produced by type II alveolar cells facilitates alveolar distention and ventilation by which mechanism? Selected Answer: Decreasing surface tension in the alveoli • Question 14 1 out of 1 points A patient is brought to the Emergency Department with a gunshot wound to the chest. The healthcare professional assesses an abnormality involving a pleural rupture that acts as a one-way valve, permitting air to enter on inspiration but preventing its escape by closing during expiration. What action by the healthcare professional is the priority? Selected Answer: Assist with a chest tube insertion. • Question 15 1 out of 1 points What is the only surface inside the nephron where cells are covered with microvilli to increase the reabsorptive surface area called? Selected Answer: Proximal convoluted tubules • Question 16 1 out of 1 points A patient is having an IgE-mediated hypersensitivity reaction. What action by the healthcare professional is best? Selected Answer: Give the patient an antihistamine. • Question 17 1 out of 1 points A patient has been diagnosed with a renal stone. Based on knowledge of common stone types, what self-care measure does the healthcare professional plan to teach the patient when stone analysis has returned? Selected Answer: Ingest 1000 mg of calcium a day. • Question 18 1 out of 1 points Which hormone is required for water to be reabsorbed in the distal tubule and collecting duct? Selected Answer: Antidiuretic hormone • Question 19 1 out of 1 points The cardiac electrical impulse normally begins spontaneously in the sinoatrial (SA) node because of what reason? Selected Answer: It depolarizes more rapidly than other automatic cells of the heart. • Question 20 1 out of 1 points What is one function of the tumor cell marker? Selected Answer: To screen individuals at high risk for cancer • Question 21 1 out of 1 points When comparing the clinical manifestations of both diabetic ketoacidosis (DKA) and hyperglycemic hyperosmolar nonketotic syndrome (HHNKS), which condition is associated with only DKA? Selected Answer: Kussmaul respirations • Question 22 1 out of 1 points Which cAMP-mediated response is related to antidiuretic hormone? Selected Answer: Increased retention of water • Question 23 1 out of 1 points The student wants information about a patient's renal function. What test does the healthcare professional tell the student to evaluate? Selected Answer: Serum blood urea nitrogen and creatinine • Question 24 1 out of 1 points What is the most important cause of pulmonary artery constriction? Selected Answer: Low alveolar partial pressure of arterial oxygen (PaO 2) • Question 25 1 out of 1 points In teaching a women's community group, which risk factor does the healthcare professional teach is related to high morbidity of cancer of the colon, uterus, and kidney? Selected Answer: Women who have a high body mass index • Question 26 1 out of 1 points A healthcare professional is caring for four patients. Which patient does the professional assess for pulmonary emboli (PE) as the priority? Selected Answer: Deep venous thrombosis • Question 27 1 out of 1 points What is the second most commonly recognized genetic cause of intellectual disability? Selected Answer: Fragile X syndrome • Question 28 1 out of 1 points A person has acne, easy bruising, thin extremities, and truncal obesity. The healthcare professional assesses the person for which of these? Selected Answer: Use of glucocorticoids • Question 29 1 out of 1 points What is the cause of functional dysphagia? Selected Answer: Neural or muscular disorders • Question 30 1 out of 1 points What effect is a result of inhibiting the parasympathetic nervous system with a drug such as atropine? Selected Answer: Salivation decreases. • Question 31 1 out of 1 points Renal failure is the most common cause of which type of hyperparathyroidism? Selected Answer: Secondary • Question 32 1 out of 1 points A healthcare professional wants to determine the adequacy of a person's alveolar ventilation. What assessment finding is most important for the professional to consider? Selected Answer: Arterial blood gas shows a PaCO 2 of 44 mmHg. • Question 33 1 out of 1 points The acute inflammatory response is characterized by fever that is produced by the hypothalamus being affected by what? Selected Answer: Endogenous pyrogens • Question 34 1 out of 1 points A healthcare professional is caring for four patients. Which patient does the professional assess for neurogenic diabetes insipidus (DI)? Selected Answer: Posterior pituitary trauma • Question 35 1 out of 1 points Within a physiologic range, what does an increase in left ventricular end-diastolic volume (preload) result in? Selected Answer: Decrease in repolarization • Question 36 0 out of 1 points Which patient would the healthcare professional assess for elevated levels of antidiuretic hormone (ADH) secretion? Selected Answer: Has long-standing kidney disease from diabetes • Question 37 1 out of 1 points A student asks why some vaccinations are given orally and some are given by injection. What response by the professor is best? Selected Answer: Each route stimulates a different lymphocyte-containing tissue, resulting in different types of cellular and humoral immunity. • Question 38 1 out of 1 points The Bainbridge reflex is thought to be initiated by sensory neurons in which cardiac location? Selected Answer: Atria • Question 39 1 out of 1 points A healthcare professional is caring for four patients. Which patient should the professional assess for hyperkalemia? Selected Answer: Renal failure • Question 40 1 out of 1 points What is the role of the normal intestinal bacterial flora? Selected Answer: Metabolizing bile salts, estrogens, and lipids • Question 41 1 out of 1 points A patient diagnosed with diabetic ketoacidosis (DKA) has the following laboratory values: arterial pH 7.20; serum glucose 500 mg/dL; positive urine glucose and ketones; serum potassium (K +) 2 mEq/L; serum sodium (Na +) 130 mEq/L. The patient reports that he has been sick with the flu for 1 week. What relationship do these values have to his insulin deficiency? Selected Answer: Decreased glucose use causes fatty acid use, ketogenesis, metabolic acidosis, and osmotic diuresis. • Question 42 1 out of 1 points A student asks the professor how a faulty negative-feedback mechanism results in a hormonal imbalance. What response by the professor is best? Selected Answer: Excessive hormone production results from a failure to turn • Question 43 1 out of 1 points A healthcare provider notes that tapping the patient's facial nerve leads to lip twitching. What electrolyte value is correlated with this finding? Selected Answer: Ca ++: 8.2 mg/dL • Question 44 1 out of 1 points A patient is having a spirometry measurement done and asks the healthcare professional to explain this test. What response by the professional is best? Selected Answer: To measure the volume and flow rate during forced expiration • Question 45 1 out of 1 points Which characteristic is the most important determinant of immunogenicity when considering the antigen? Selected Answer: Foreignness • Question 46 1 out of 1 points Which renal change is found in older adults? Selected Answer: Decrease in the number of nephrons • Question 47 1 out of 1 points If a patient develops acidosis, the nurse would expect the oxyhemoglobin dissociation curve to react in which manner? Selected Answer: Shift to the right, causing more oxygen (O 2) to be released to the cells • Question 48 1 out of 1 points Under anaerobic conditions, what process provides energy for the cell? Selected Answer: Glycolysis • Question 49 1 out of 1 points A patient suffered multiple traumatic injuries and received many blood transfusions within a few days of the injuries. For which medical condition should the healthcare professional monitor the patient for? Selected Answer: Hemosiderosis • Question 50 1 out of 1 points The student asks the professor to explain what characteristic is demonstrated by lungs with decreased compliance? Selected Answer: stiffness • Question 51 1 out of 1 points What is one function of the tumor cell marker? Selected Answer: To screen individuals at high risk for cancer • Question 52 1 out of 1 points Vaccinations are able to provide protection against certain microorganisms because of what? Selected Answer: Rapid response from IgA • Question 53 1 out of 1 points A student asks the healthcare professional to describe exotoxins. Which statement by the professional is best? Selected Answer: Exotoxins are released during bacterial growth. • Question 54 1 out of 1 points A class of students has learned about contributing factors to duodenal ulcers. What statement indicates to the professor that the students need a review? Selected Answer: Gastric emptying is slowed, causing greater exposure of the mucosa to acid.. • Question 55 1 out of 1 points A healthcare professional is caring for a patient who has a delay in electrical activity reaching the ventricle as seen on ECG. What ECG finding would the healthcare professional associate with this problem? Selected Answer: PR interval measuring 0.28 sec • Question 56 1 out of 1 points How do free radicals cause cell damage? Selected Answer: Giving up an electron, which causes injury to the chemical bonds of the cell membrane • Question 57 1 out of 1 points What causes the edema that occurs during the inflammatory process? Selected Answer: Increased capillary permeability • Question 58 0 out of 1 points A student learns what information about acute pancreatitis? Selected Answer: Autoimmune process with IgG attacking pancreatic acinar cells • Question 59 1 out of 1 points A student asks why carbon monoxide causes tissue damage. What response by the professor is best? Selected Answer: Binds to hemoglobin so that it cannot carry oxygen • Question 60 1 out of 1 points The healthcare professional working with older adults teaches general infection-prevention measures as a priority for this age group due to which change in lymphocyte function? Selected Answer: Decreased number of circulating T cells • Question 61 1 out of 1 points A healthcare professional is caring for a patient who has continuous increases in left ventricular filing pressures. What disorder would the professional assess the patient for? Selected Answer: Pulmonary edema • Question 62 1 out of 1 points Why is leakage of lysosomal enzymes during chemical injuries significant? Selected Answer: Enzymatic digestion of the nucleus and nucleolus occurs, halting DNA synthesis. • Question 63 1 out of 1 points A patient has diabetes mellitus. A recent urinalysis showed increased amounts of protein. What therapy does the healthcare provider educate the patient that is specific to this disorder? Selected Answer: More frequent blood glucose monitoring • Question 64 1 out of 1 points A student asks the professor to explain what effect natriuretic peptides have during heart failure when the heart dilates. Which response by the professor is best? Selected Answer: Inhibits renin and aldosterone • Question 65 1 out of 1 points Which type of immunity is produced by an individual after either natural exposure to the antigen or after immunization against the antigen? Selected Answer: Active-acquired immunity • Question 66 1 out of 1 points A patient has a history of excessive use of magnesium-containing antacids and aluminum-containing antacids. What lab value does the healthcare professional correlate to this behavior? Selected Answer: Phosphate 1.9 mg/dL • Question 67 1 out of 1 points A student asks the healthcare professional to explain the function of the papillary muscles. What response by the professional is best? Selected Answer: These muscles prevent backward exp