Maryville College

Myasthenia gravis is an autoimmune disease in which a. neuronal demyelination disrupts nerve transmission. b. muscles become increasingly bulky but weakened. c. acetylcholine receptors are destroyed or dysfunctional. d. acetylcholine release from motor neurons is disrupted. - c. acetylcholine receptors are destroyed or dysfunctional Myasthenia gravis is an autoimmune disease in which acetylcholine receptors are destroyed or dysfunctional. Multiple sclerosis is an autoimmune disease in whi...

Tumors are named in accordance with a system based on: Cell type or tissue Organ or size Size or appearance Cell type or shape - Cell type or tissue Substances such as enzymes, antigens, and hormones present in the circulation that can be used for cancer screening, to confirm a diagnosis, or to monitor the clinical course of a malignancy are called: Oncoindicators Tumor traits Tumor markers Oncogens - Tumor markers A person's genetic predisposition to cancer may be revealed by the p...

A urologist is discussing a structure that supplies blood to the medulla. What is the urologist describing? A. Renal arteries B. Arcuate arteries C. Peritubular capillaries D. Vasa recta - D. Vesa recta The vasa recta is a network of capillaries that forms loops and closely follows the loops of Henle and is the only blood supply to the medulla. When teaching about sodium reabsorption, which information should the nurse include? The majority of sodium reabsorption takes place in the: A....

How much urine can the urinary bladder usually hold? a. 150 to 250 mL b. 300 to 400 mL c. 450 to 550 mL d. 600 to 700 mL - 300 to 400 mL Which type of calculi in the ureter is found most often in clients with spinal cord injuries? a. Calcium b. Struvite c. Uric acid d. Cystine - Struvite A nurse is teaching student nurses about the epidemiology of lower urinary tract infections (UTIs). Which statement made by a student nurse indicates a need for further learning? a. "Young adult w...

Nicotine increases atherosclerosis by the release of which neurotransmitter? (Points : 0.5) Histamine Nitric oxide Angiotensin II Epinephrine - D. Epinephrine Nicotine stimulates the release of catecholamines (epinephrine and norepinephrine), which increases the HR and causes peripheral vascular constriction. As a result, blood pressure increases as do both cardiac workload and oxygen demand. The pulsus paradoxus that occurs as a result of pericardial effusion is caused by a dysfuncti...

Increased platelet function, and consequent hypercoagulability, can be caused by: - Vascular damage Disseminated intravascular coagulation (DIC) is characterized by: - hemorrhage Sue is fatigued and some blood tests are done. Her results include Hct 40%; Hgb 8g/dL; WBC 8,000; platelets 175,000. The nurse should interpret Sue's blood work as indicative of: - low hemoglobin/anemia The patient is an average-sized adult and has abnormal microcytic hypochromic red blood cells due to a long-te...

Which statement best differentiates cardiac afterload from cardiac preload? - Cardiac afterload is the amount of resistance that the ventricle must overcome How does the heart function when a client is diagnosed with heart failure? - The contractility and stroke volume decreases. What is oncotic pressure? - A force that attempts to pull fluid from the interstitial and intracellular space How is chronic heart failure different from acute heart failure? - Chronic heart failure gradually dev...

Hypocalcemia; Intermittent muscle spasms and complaints of numbness around her mouth - A female client with a history of chronic renal failure has a total serum calcium level of 7.9 mg/dL; nurse should focus on which manifestation associated with this calcium level? Cardiometabolic disorders - A client has been diagnosed with upper body obesity along with central fat distribution; therefore is at a greater risk for developing: Hyperarousal - A female client experienced a random assault sev...

The action of the platelet derived growth factor is to stimulate the production of which cells - Connective tissue cells. in action potential: When a resting cell is stimulated through voltage-regulated channels, the cell membranes be-come ??? . - more permeable to Na + in action potential: A net Na + moves into the cell, and the membrane potential ??? , from a negative value (in millivolts) to zero. - de-creases, or moves forward in action potential: The Na + gates open, and Na + rushe...

precipitating factors - triggers acute episode predisposing factor - risk factors Pathogenesis - development of disease prophylaxis - prevent spread of disease Morbidity - disease rates within a group mortality - relative number of deaths resulting from a particular disease free radical formation - - Hypoxic injury leads to anaerobic metabolism leads to lactic acidosis leads to decrease in ATP/failure of K+/Na+ pump leads to reperfusion injury leads to reactive oxygen species/free radica...