CCHT practice test 5.0 questions answered correctly (2022/2023), Exams of Nursing

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CCHT practice test 5.0 questions answered correctly (2022/2023).

5.Which of the following is correct regarding a fistula? a) usually created in the leg, near the ankle b) usually created in the forearm, near the wrist c) are made of salastic tubing d) none of the above 6.Blood leak detectors are extremely sensitive & can determine: a) blood type 1 .Which of the following best describes the reas on for wearing gloves when handling machine prior to blood? a) patient comfor t b) asepsi s c) universal precautions d) HI V 2 You test for sterilant levels in a hemodialysis machine prior to patient use. The test is positive for sterilant. This means the machine: a) is sterile & bacteria free b) needs further rinsing c) needs more sterilant d) is in conductivity 3 .Choose the correct statement regarding serum abnormalities in renal failure: a) creatinine, BUN, & phosphorus are elevated b) creatinine BUN creatinine, BUN, & phosphorus are depressed c) calcium & bicarbonate are elevated d) calcium & bicarbonate are depressed 4 .Hemodialysis requires a means to channel the patient's blood to the hemodialyzer & then back to the body. It's called: a) vascular access b) hemodialyzer c) dialyzing fluid delivery system d) infusion pump

b) amount of blood loss c) blood leakage immediately d) volume changes e) serum potassium levels 7.Which of the following foods are high in potassium? a) milk, ice cream, yogurt b) legumes, cheese, pizza c) chips, colas, canned meat d) bananas, tomatoes, oranges 8.What lab values are monitored for assessing bone disease? a) calcium, phosphorus & PTH b) calcium, phosphorus & albumin c) calcium, phosphorus & potassium d) calcium, phosphorus & magnesium 9.Which is the most common cause of chronic kidney failure in the US? a) diabetes b) hypertension c) polycystic kidney smaller molecular disease d) glomerulonephritis 10.The reason potassium dialyzes and RBC's do not is: a) potassium has a larger molecular weight b) potassium has a smaller molecular weight c) RBC's are not water soluble d) RBC's have a negative charge 11.Acceptable limits for total chlorines in water for hemodialysis are? a) less than 0 .1mg/L (ppm) b) 0.5 mg/L to 1 mg/L(ppm) c) 3.5 mg/L to 5.5 mg/L to 5.5 mg/L(ppm) d) greater than 6.0 mg/L(ppm) 12.If a new patient starts with a very high BUN, dialysis is purposely made less efficient to prevent: a) rapid decrease in hct b) dialysis disequilibrium syndrome c) cardiac arrhythmia's d) excessive coagulation 13.The following are factors in poor clearance during dialysis except: a) poor dialyzer reuse b) access recirculation c) low hematocrit

d) low blood flow rate 14.The movement of water from an area of low solute concentration to an area of high solute concentration is called: a) diffusion b) osmosis c) ultrafiltration d) dialysis 15.Potting compound, casing, fibers and headers are part of a: a) dialysis machine b) water treatment system c) R. O. system d) dialyzer 16.Mr. Jones has a dry weight of 72 kg. He weighed 73 kg after last treatment. Today he weighs 75.5 kg. Assume prime and rinse back =500 ml total. What is Mr.Jones' fluid removal goal for today? a) 2.5 liters or 2500 ml b) 3.0 liters or 3000 ml c) 4.0 liters or 4000 ml d) 4.5 liters or 4500 17.A hematocrit test indicates which of the following? a) concentration of platelets b) concentration of creatinine in the blood c) concentration of red blood cells in the blood d) concentration of white blood cells in the blood 18.What factors should be considered when establishing a patient's dry weight? a) blood pressure b) patient well being c) evidence of dehydration or fluid overload d) all of the above 19.In a dialysis machine, the proportioning system does what? a) prepare the dialysate to the proper pH b) warm the dialysate to the proper temperature c) appropriately mix the dialysate concentrates with water d) to monitor the dialysate flow rate 20.The complication in which blood has a "cherry pop"appearance is: a) blood leak b) air embolism c) hemolysis d) none of the above 21.The use of high a sodium dialysate may predispose a patient to: a) fluid overload

b) hypertension c) thirst d) all of the above 22.The capability of a dialyzer to remove fluid, expressed as ml/mmHg/hr is: a) UF Coefficient b) clearance c) surface area d) priming volume 23.A pre-pump arterial pressure reading is measuring: a) the pressure required to pump the blood through the dialyzer b) resistance to blood flow out of the access c) pressure within the dialyzer d) none of the above 24.What determines the surface area of a hollow fiber dialyzer? a) number of fibers b) internal diameter of fibers c) length of fibers d) all of the above 25.The purpose of using counter-current flow is to: a) increase the rate of fluid removal b) increase the rate of waste removal c) decrease the amount of dialysate used d) decrease the surface area of the membrane 26.Chloramine exposure in dialysis can result in: a) hypernatremia b) hemolysis c) pericarditis d) bleeding 27.Part of the reuse process involves the reuse machine testing the dialyzer to verify: a) the dialyzer is free of sterilant b) the dialyzer is free of bacteria c) the dialyzer is free of endotoxins d) the dialyzer fibers are free of leaks

35.The hemodialysis machine continuously monitors many parameters. Which of these parameters must be verified by an external measuring device? a) blood flow b) dialysate flow c) pH and conductivity d) temperature and transmembrane pressure 28 .According to AAMI RD52, what is the maximum allowable level of bacteria in dialysate? a) 1,000 CFU's b) 50 CFU's c) 200 CFU's d) 500 CFU's 29 .According to AAMI RD52, how often should bacterial cultures be sampled? a) weekly b) monthly c) quarterly d) annually 30 .According to AAMI RD52, what is the action level for bacteria in dialysate? a) 50 CFU's b) 75 CFU's c) 100 CFU's d) 200 CFU's 31 .Bacterial exposure from water may cause which of the following symptoms? a) hemolysis b) fever/chills c) bone disease d) hypotension 32 .Who developed the first permanent blood access, the "Shunt"? a) Scribner and Quinton b) Kolff c) Brescia and Cimino d) Turne r 33 .Venous pressure meters are calibrated in : a) PSI b) mm/H g c) mL/hou r d) mg% 34 .TPM is measured as: a) mL/h r b) mm/Hg c) mL/mi n d) none of the above

36.Prior to each patient shift, it would be essential to perform a water quality check for which of these substances? a) calcium and magnesium b) chlorine and chloramine c) organic contaminants d) inorganic contaminants 37.The term pH is a measurement of the concentration of: a) all ions in solution b) hydrogen ions c) bicarbonate ions d) acetate ions 38.The technician's role in patient teaching should be to: a) assess the patient"s barriers to learning b) check the patient's readiness to learn new information c) determine the patient's learning needs d) Reinforce teaching that the patient has received from other team members 39.What can dialysis staff do to reduce the risk of being infected with a blood borne pathogen? a) proper hand washing b) universal precautions c) proper sharps disposal d) all of the above 40.Which of the following are ways to handle chemicals safely? a) wash hands before eating or drinking b) wear protective clothing c) don't eat or drink in the work area d) all of the above 41.What is the correct angle in which to cannulate a fistula? a) 10 - 15 degrees b) 25 - 35 degrees c) 35 - 45 degrees d) it dosen't matter 42.Which of the following affects access recirculation? a) distance between the tips of the needles b) presence of stenosis c) direction of needles d) all of the above The technician observes that the hardness reading after the water softener isabove the acceptable limit. The technician should check the softener tank's level of: a) salt b) chlorine c) carbon

d) sand

44. A technician observes all of the following in the hemodialysis unit. Which one poses an environmental risk? a) the wheels of the hemodialysis machines are locked b) charts are lying on bedside tables c) about one ounce (30 ml) of fluid is on the floor d) a patient's family member is present during treatment
45. When preparing a bleach solution for cleaning equipment, the technician accidentally spills undiluted bleach on the floor. Which of these resources will provide the technician with information about how to properly handle spill of the chemical? a) Material Safety Data Sheet (MSDS) b) Centers for Disease Control & Prevention (CDC) c) Association for the Advancement of Medical Instrumentation (AAMI) d) State Department of Health (DOH) A conductivity alarm sounds during a hemodialysis treatment. The technician should expect which of these events to have occurred? a) the blood pump has stopped b) the dialysate flow rate has increased c) the electrical power source was interrupted d) the dialyzer was bypassed
46. During routine water testing, the technician notes that the chloramine level after the first carbon tank is 0.2mg/L. Which of these actions should the technician take next? a) bypass the carbon tanks b) descale the reverse osmosis membranes c) obtain a sample after the second d) immediately terminate hemodialysis treatments
    48. A female technician has been caring for a male patient for several months. The patient tells the technician that he is lonely and depressed. He asks the technician to go out to dinner with him. In addition to politely declining the patient's invitation, which of these actions, if any, should be taken: a) refer the patient to the social worker b) recommend an over-the-counter mood stimulant, such as St. John's wort c) share the patient's need for socialization with other patients d) no further action is needed
47. A hemodialysis technician suspects that a patient who is receiving a hemodialysistreatment has an air embolus. After stopping the blood pump, the patient should be placed in which of these positions? a) low-fowlers b) high-fowlers c) right-sided trendelenberg d) left-sided trendelenberg
    50. During hemodialysis a patient goes into cardiac arrest. Which of these actions shouldbe taken first? a) apply a precordial thump to the patient

b) call for help c) return the patient's blood Powered by TCPDF (www.tcpdf .or g)^ d) stop ultrafiltration