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CCHT Exam 2023 Questions and Answers (Verified Answers)
c) universal precautions 1.Which of the following best describes the reason for wearing gloves when handling machine prior to blood? a) patient comfort b) asepsis c) universal precautions d) HIV b) needs further rinsing 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 a) creatinine, BUN, & phosphorus are elevated 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 a) vascular access 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) usually created in the forearm, near the wrist 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 c) blood leakage immediately 6.Blood leak detectors are extremely sensitive & can determine: a) blood type b) amount of blood loss c) blood leakage immediately
disease d) glomerulonephritis b) potassium has a smaller molecular weight 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 a) less than 0 .1mg/L (ppm) 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) b) dialysis disequilibrium syndrome 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 c) low hematocrit 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 b) osmosis 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 d) dialyzer 15.Potting compound, casing, fibers and headers are part of a: a) dialysis machine b) water treatment system c) R. O. system d) dialyzer c) 4.0 liters or 4000 ml 16.Mr. Jones has a dry weight of 72 kg. He weighed 73 kg after last treatment. Today he weighs 75. 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
a) blood leak b) air embolism c) hemolysis d) none of the above d) all 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 a) UF Coefficient 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 b) resistance to blood flow out of the access through the dialyzer 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
d) all 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 b) increase the rate of waste removal 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 b) hemolysis 26.Chloramine exposure in dialysis can result in: a) hypernatremia b) hemolysis c) pericarditis d) bleeding d) the dialyzer fibers are free of leaks 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
d) hypotension a) Scribner and Quinton 32.Who developed the first permanent blood access, the "Shunt"? a) Scribner and Quinton b) Kolff c) Brescia and Cimino d) Turner b) mm/Hg 33.Venous pressure meters are calibrated in: a) PSI b) mm/Hg c) mL/hour d) mg% b) mm/Hg 3 4.TPM is measured as: a) mL/hr b) mm/Hg c) mL/min d) none of the above c) pH and conductivity 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 b) chlorine and chloramine 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 b) hydrogen ions 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 c) determine the patient's learning needs 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
a) salt 43.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 c) about one ounce (30 ml) of fluid is on the floor
- 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 a) Material Safety Data Sheet (MSDS)
- 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) d) the dialyzer was bypassed
- 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 c) obtain a sample after the second
- 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 a) refer the patient to the social worker
- 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 d) left-sided trendelenberg
- A hemodialysis technician suspects that a patient who is receiving a hemodialysistreatment has an air embolus. After stopping the blood pump, the patient
