CCHT PRACTICE EXAM DAVITA 150 Questions with Verified Answers,100% CORRECT

CCHT PRACTICE EXAM DAVITA 150 Questions with Verified Answers The function unit of the kidney, or the structure in the kidney that does the work, is the - CORRECT ANSWER nephron the leading cause of chronic kidney disease for adults in the united states: - CORRECT ANSWER diabetes a nephron is made up - CORRECT ANSWER a glomerulus and a tubule system which of the following is not a symptom of uremia - CORRECT ANSWER elevated hematocrit Mrs. smith's dry weight is 62 kg. her pretreatment weight when she came in for treatment on monday was 67kg. the priming saline amount is 240ml, fluid from medication is 100 ml , and she is not allowed any fluids during treatment. what is the total amount of fluid weight to be removed during her treatment? - CORRECT ANSWER 5,540ml based on Mrs. smith's total amount of fluids to be removed, what is the ultrafiltration rate per hour (ml/hr)for her 4-hour treatment? - CORRECT ANSWER 1,385 ml/hr which of the following is a cause of hypotension during and after dialysis treatments? - CORRECT ANSWER removing too much fluids the scale says a patient weights 70 kg. this the same as weighting how many points (lb)? - CORRECT ANSWER 154 normal body ph is - CORRECT ANSWER 7.35-7.45 one sigh and symptoms of fluids overload is - CORRECT ANSWER hypertension abnormal levels of this electrolyte can cause cardiac arrhythmias and even death - CORRECT ANSWER potassium water moves across a membrane from an area of lower solute concentration to an area of higher solute concentration by which principle - CORRECT ANSWER osmosis waste products are removed during dialysis by which principle - CORRECT ANSWER diffusion excess fluid is forced out of the blood and into the dialysis by which principle - CORRECT ANSWER ultrafiltration the movement of the fluid from the tissue toward a higher concentration of sodium in the blood is a example of - CORRECT ANSWER osmosis decreasing the patient's prescribed blood flow affects the rate of - CORRECT ANSWER diffusion which of the following actions would increase diffusion during dialysis? - CORRECT ANSWER using a bath that will provide a grater concentration gradient which of the following diffusion diffuses from the patients blood during dialysis? - CORRECT ANSWER urea ultrafiltration is influenced by - CORRECT ANSWER transmembrane pressure the most common complication in peritoneal dialysis is - CORRECT ANSWER peritonitis the dextrose used in the dialysate for peritoneal dialysis can cause - CORRECT ANSWER hyperglycemia if a patient develops an infection post transplant, the largest contributing factor would most likely be: - CORRECT ANSWER immunosuppressive medication the most frequent cause of death in the first year post transplant is - CORRECT ANSWER infection total cell volume (TCV) is a indirect measure of the - CORRECT ANSWER performance of the dialyzer the TCV should be no less than - CORRECT ANSWER 80% the manimum dwell time to achieve sterilization with the chemical renalin is - CORRECT ANSWER 11 hours the reprocessed dialyzer is carefully rinsed prior to patient use to remove - CORRECT ANSWER residual sterilant germicide rebound occurs due to - CORRECT ANSWER inadequate dialyzer priming which organization set the standards and recommendations for dialyzer reprocessing? - CORRECT ANSWER AAMI the blood path integrity is tested to eliminate the possibility of a blood leak. the drop in pressure should not exceed: - CORRECT ANSWER 10 mmhg the purpose of using counter-current flow is to - CORRECT ANSWER increase the rate of waste removal the total pressure that exists across the dialyzer membrane is called - CORRECT ANSWER transmembrane pressure dialyser ph should be - CORRECT ANSWER between 7.0 and 7.4 dialyzer that is too hot will cause - CORRECT ANSWER hemolysis which of the following component in dialysate is used to correct metabolic acidosis? - CORRECT ANSWER bicarbonate total chlorine levels in the water are tested - CORRECT ANSWER before each patient shift or every four hour the water softener removes - CORRECT ANSWER calcium and magnesium AAMI standars for the total microbial count of dialysate shall not exceed - CORRECT ANSWER 200 CFU/ML the water softener - CORRECT ANSWER operates on the principle of ion exchange which of the following is considered to be safe water for dialysis - CORRECT ANSWER dialysis quality water patient expose to chloramines during the hemodialysis treatment may cause - CORRECT ANSWER hemolysis according to AAMI the standard levels for endotoxin levels is - CORRECT ANSWER less than two (2) EU/ML. feed conductivity- product conductivity divided by x 100 is the formula calculation of - CORRECT ANSWER percent rejection a mixed-bed DI tank contains - CORRECT ANSWER cations and anions the substance that may be added to the municipal drinking water to make it clearer is - CORRECT ANSWER aluminum AAMI chemical analysis of water used for hemodialysis is tested - CORRECT ANSWER annually the part of the cell wall of bacteria that, when released, can cause fever in hemodialysis patients is - CORRECT ANSWER endotoxin during a hemodialysis treatment the technician responds to a low venous pressure alarm. the most likely cause for this alarm - CORRECT ANSWER disconnection of the blood line the hemodialysis machine continuously monitors may parameters. which of the these parameters must be verified by an external measuring device? - CORRECT ANSWER ph and conductivity which of the following is most likely to cause a high venous pressure alarm? - CORRECT ANSWER kinking of the venous blood line during the set-up of a hemodialysis machine, the alarm test for conductivity fails. which of these actions should the dialysis technician take? - CORRECT ANSWER notify the equipment technician rinse in transmembrane pressure in a low flux dialyzer during hemodialysis is indicative of - CORRECT ANSWER clotting of the extrecorporeal circuit one reason that normal saline is used to rinse and prime the extracorporeal circuit prior to treatment is to remove - CORRECT ANSWER air which of the following best describes the transducer protector? - CORRECT ANSWER device inside the machine that converts air pressure into electronic signal which of the following would cause a high venous pressure alarm? - CORRECT ANSWER venous needle is against the wall of the vessels the air detector alarms during treatment. if the machine is working properly, the dialysis technician should expect which of these events to have occurred - CORRECT ANSWER blood pump has stopped the extracorporeal circuit consists of the - CORRECT ANSWER blood lines and the dialyzer before a hemodialysis treatment , treatment , the technician removes the cap from the fistula needle and accidentally touches the chair with the tip of the needle. which of these actions should the technician take first - CORRECT ANSWER discard the needle to determine the potency of a arteriovenous vascular access, the dialysis technician should initially feel for the presence of - CORRECT ANSWER a thrill a patient complaints of pain at the venous needle site. the dialysis technician observes there is swelling distal to the venous needle site and that the venous pressure is rising. the dialysis technician should suspect - CORRECT ANSWER an infiltration all the following may be signs and symptoms of an infection access EXCEPT: - CORRECT ANSWER numbness and tingling during a hemodialysis treatment, a patient's venous needle infiltrates. which of these actions should the dialysis technician take first? - CORRECT ANSWER stop the blood pump which of these types of vascular access has the fewest complication - CORRECT ANSWER an arteriovenous fistula one disadvantage of a fistula is an increase in - CORRECT ANSWER in time to mature one cause of aneurysm and pseudo aneurysm is - CORRECT ANSWER poor rotation of sites what is the desired outcome when the patient performs fistula exercise? - CORRECT ANSWER enlargement of the vein the bruit in an AV fistula or graft is detected by - CORRECT ANSWER listening with a stethoscope when cannulating, the tips of the needles should be at least - CORRECT ANSWER 2.0 inches apart the venous needle in an AV fistula - CORRECT ANSWER should point in the direction of the blood flow a true aneurysm can be dangerous because it - CORRECT ANSWER may rupture and cause the patient to bleed profusely a fistula connects - CORRECT ANSWER an artery to a vein prior to cannulation a technician notices the skin over the patient's fistula is reddened and warm to touch. these symptoms are most likely due to - CORRECT ANSWER infection during predialysis data collection, it would be best for the technician to ask the patient which of these questions? - CORRECT ANSWER how have you been since your last dialysis treatment? Mrs. pruitt's temperature is elevated post-hemodialysis treatment. which of these actions should the dialysis technician take? - CORRECT ANSWER notify the nurse Mrs. smith arrives for dialysis treatment complaining of shortness of breath. her pre-dialysis weight is 4.7 kilograms above the last post-treatment weight. the dialysis technician reweighed and verified the weight. which of the actions should the dialysis technician take next? - CORRECT ANSWER notify the nurse of the need for an assessment slow pulse of 54 beats/minute would indicate the patient has: - CORRECT ANSWER bradycardia during hemodialysis, the air detector on Ms. foster's machine alarms and foam is visible in the venous drip chamber. the immediate action of the dialysis technician should be to. - CORRECT ANSWER clamp the venous line dry weight is defined as the - CORRECT ANSWER weight at which the patient has no edema or fluids in the lungs and bp is normal which of the following symptoms would indicate a need to increase the estimated dry weight (EDW)? - CORRECT ANSWER hypotension and cramping Sam's EDW is 70 kilograms (KG). he arrives for treatments today at a weight of 70kg. he complains of shortness of breath and you notice his ankles are swollen. you notify the charge nurse. what do you think will be the plan for sam's treatments todays? - CORRECT ANSWER the nurse will get an order to decrease the EDW which of the following is not a possible cause of an increased temperature pre-dialysis? - CORRECT ANSWER the patient has fluid overload which of the following is the classic sign of hemolysis - CORRECT ANSWER cranberry juice colored blood in the venous line Ms. foster complication of shortness of breath. while calling for the nurse the dialysis technician notices there is air in the extracorporeal circuit she/he should place Ms. foster in: - CORRECT ANSWER trendelenburg position on left side solution that have a higher osmolarity than body fluids are called? - CORRECT ANSWER hypertonic the most important intervention to prevent the spread of infection is: - CORRECT ANSWER cleansing of the hands infection control protocol for hemolysis equipment should include which of these actions by the caregiver? - CORRECT ANSWER using gloves when touching the machine when fluid replacement is necessary during the hemodialysis treatment, which of the following solution is used? - CORRECT ANSWER 0.9% normal saline a patient's dry weigh is 154.0 lb (70 kg) and the patient's pre treatment weight is 158.4 lb (72kg). four-hours treatment, how many ml/hour must the patient lose to reach dry weight? - CORRECT ANSWER 500 during a hemodialysis treatment, a patient says to the technician, three hours of time have passed according to the clock on the wall, but the machine shows that only 2.5 hours have passed. what could be the problem? the technician should understand that the. - CORRECT ANSWER machine was in bypass for 30 minutes a dialysis technician observes a drop of blood on the surface of a patient's hemolysis machine. which of these actions should the dialysis technician take? - CORRECT ANSWER clean the machine surface immediately asepsis is defined as - CORRECT ANSWER the absence of disease producing organism if the extracorporeal circuit clots and it must be discarded, it would be most important to monitor the patient's serum levels of - CORRECT ANSWER hemoglobin what are the typical signs of fluids overload - CORRECT ANSWER edema and shortness of breath hyperkelemia can lead to - CORRECT ANSWER cardiac arrest which of the following is used to prevent air in the bloodlines? - CORRECT ANSWER tighten all connections fifteen minutes before the end of a hemodialysis treatment, a patient complains of dizziness and nausea. these symptoms are most likely due to - CORRECT ANSWER hypotension during the hemodialysis treatment, a patient complains of feeling chilled. in addition to getting the blanket, which of these actions should the technician take? - CORRECT ANSWER take the patient's temperature short frequent hemodialysis treatment in patients with high BUN ( blood urea nitrogen ) are performed to prevent - CORRECT ANSWER dialysis disequilibrium syndrome during hemolysis a patient goes into cardiac arrest. the first action of the dialysis technician should be? - CORRECT ANSWER call for assistance a patient who is to receive their first dialysis treatment is prone to - CORRECT ANSWER dialysis disequilibrium syndrome fluid to be removed divided by the treatment time tells us - CORRECT ANSWER the ultrafiltration rate the normal range of resting respirations in an adult is: - CORRECT ANSWER 12-20 breaths per minute hives, itching, tightness of the chest and respiratory distress may be signs and symptoms of: - CORRECT ANSWER anaphylaxis (severe allergic reaction) pain at the venous needle site, along with respiratory difficulty and chest pain could be an indicator of: - CORRECT ANSWER sterilant infusion a rapid pulse of 104 beats/minute would indicate that the patient has: - CORRECT ANSWER tachycardia a marker used to determinate the middle molecule clearance of a dialyzer is - CORRECT ANSWER vitamin B12 the national standard, based on the KDOQI ( kidney disease outcomes quality initiative ) guidelines, for the urea reduction rate ( URR) is a ratio greater than : - CORRECT ANSWER 65% what lab tests are used to monitor anemia in the ESRD patient? - CORRECT ANSWER hemoglobin/hematocrit ESRD specific tests such us as BUN, creatinine, and URR are - CORRECT ANSWER indicators of the adequacy of the renal replacement therapy the accuracy of lab results depends on adherence to proper lab draw must ensure that labs are drawn: - CORRECT ANSWER at the right time, right site, and right order albumin is an important test that tells about the patient------------status - CORRECT ANSWER nutritional which of the following is the most accurate measure of dialysis adequacy? - CORRECT ANSWER Kt/V biohazardous waste includes any material exposed to - CORRECT ANSWER blood a patient laboratory results indicate that the predialysis BUN levels was lower than the post dialysis BUN levels. when interpreting these findings the technician should seek the answer to which of these questions - CORRECT ANSWER was the predialysis sample draw from the venous port? the organization that has as a goal to '' improve the care and outcomes of all individuals with kidney disease'' is called - CORRECT ANSWER KDOQI a dialysis technician observes all of the below on the treatment floor, which one poses an environment risk? - CORRECT ANSWER about one ounce (30ml) fluid is on the floor what is the most important activity that the dialysis technician can perform to prevent the spread of infectious disease in the dialysis clinic? - CORRECT ANSWER hand washing the organization that sets the standards for dialysis water quality is called - CORRECT ANSWER AAMI which of these technician activities contributes to data collection used to measure quality outcomes? - CORRECT ANSWER ensuring accurate documentation a patient tells the technician that the dietitian reviewed high-potassium foods with her. during the conversation she states she routinely eats the following food. which one is highest in potassium? - CORRECT ANSWER bananas which food below is highest in phosphorus - CORRECT ANSWER ice cream low albumin levels in the dialysis patient have been linked with: - CORRECT ANSWER highest hospitalization and death rates acceptable interdialytic weight gains are - CORRECT ANSWER 3-5% of EDW the usual fluid allowance for a person with kidney failure is - CORRECT ANSWER 1.0 to 1.5 liters per day symptoms of hyperkalemia (high potassium) may include - CORRECT ANSWER numbness and tingling which of the following might indicate a need to decrease the heparin dose? - CORRECT ANSWER the patient just had surgery yesterday which of the following might indicate the need to increase heparin - CORRECT ANSWER clotting in the extracorporeal circuit the usual heparin sodium concentration for anticoagulation during hemolysis is - CORRECT ANSWER 1,000u/ml lidocaine is administered - CORRECT ANSWER intradermally medications that dialyze easily are all expect: - CORRECT ANSWER digoxin Mr. jones suffers from constipation. he goes to the drug store to buy a laxative. Mr. jones should avoid which medication? - CORRECT ANSWER milk of magnesia which of the following is the largest needle? - CORRECT ANSWER 18 gauge your patient is to receive 2000 units of heparin. the vial you are using is 1000u/ml heparin. how many mis will you draw up for this patient? - CORRECT ANSWER 1.0 all of the following are phosphate binders expect: - CORRECT ANSWER vitamin B 12 the medication used to treat anemia is - CORRECT ANSWER epogen the medication used to improve calcium absorption is: - CORRECT ANSWER zemplar a female dialysis technician has been caring for a male patient for several months. the patient tells the dialysis technician that he is lonely and depressed. he asked the dialysis technician to go out to dinner with him. in addition to politely declining the patient's invitation, which of these actions, if any, should the dialysis technician take? - CORRECT ANSWER refers the patient to the social worker you have documented incorrectly on a patient's chart. how do you correct this? - CORRECT ANSWER draw one line through it, date, time, signature/credentials, with the works " error" a teammate asks you to document the normal saline he just gave to M you would - CORRECT ANSWER never document something that someone else did Mr. jones demonstrates how to wash his access. this is a an example of which adult learning principle - CORRECT ANSWER psychomotor the dialysis technician's role in patient education is to - CORRECT ANSWER reinforce information provided by other teammates the most important member of the patient care team is the - CORRECT ANSWER technician the most important monitor in the dialysis setting is - CORRECT ANSWER teammate which learning domain is behavioral based - CORRECT ANSWER affective which learning domain is knowledge based - CORRECT ANSWER cognitive Mr. Roberts verbalizes how to hand crank his blood pump in the event of an emergency. this is an example of which adult principle? - CORRECT ANSWER cognitive a 58-year old patient who is blind comes to treatment accompanied by his wife. which of these approaches should the dialysis technician use when interacting with the patient? - CORRECT ANSWER describe the activities in the immediate environment according to the new conditions for coverage, all dialysis technicians are to be certified by a national certifying agency or state specific certification by - CORRECT ANSWER 04/15/2010 the minimum amount of experience required to take the NNCC certifying exam is - CORRECT ANSWER 6 months a reason why a dialysis technician is to be certified is - CORRECT ANSWER its a new federal regulation