Practice Test GeeksCertified Hemodialysis Technologist/Technician Exam Practice Test
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Certified Hemodialysis Technician Flashcards

7 cards from real CHT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. Which water treatment component is primarily responsible for removing chloramines from municipal water supplies before dialysis?

    Answer: Activated carbon tanks

    Activated carbon tanks adsorb chloramines, which are not removed by softeners or reverse osmosis and can cause hemolytic anemia if present in dialysate.

  2. A patient on hemodialysis develops sudden rigors, fever of 103°F, and hypotension 30 minutes into treatment. The most likely cause is:

    Answer: Pyrogenic reaction from endotoxin contamination

    Pyrogenic reactions present with fever and rigors and are caused by endotoxin fragments entering the blood from contaminated dialysate.

  3. The primary purpose of the bicarbonate concentrate in dialysate preparation is to:

    Answer: Correct metabolic acidosis in the patient

    Bicarbonate in dialysate diffuses into the patient's blood to buffer the metabolic acidosis that accumulates in renal failure.

  4. When priming a dialyzer with saline, the correct direction of flow through the blood compartment is:

    Answer: Arterial port to venous port (bottom to top)

    Priming flows from the arterial (inlet) port upward to the venous (outlet) port to expel air from the blood compartment in the direction blood will travel.

  5. The Kt/V target recommended by KDOQI guidelines for thrice-weekly hemodialysis patients is a minimum of:

    Answer: 1.2

    KDOQI guidelines recommend a minimum single-pool Kt/V of 1.2 per treatment for patients on thrice-weekly hemodialysis schedules.

  6. A patient's AV fistula has a palpable thrill that has become very soft with a high-pitched bruit. This change most likely indicates:

    Answer: Venous stenosis causing increased resistance

    A high-pitched bruit and diminished thrill indicate turbulent, high-velocity flow through a narrowed segment, suggesting venous stenosis.

  7. Which electrolyte abnormality is most immediately life-threatening in the dialysis patient with missed treatments?

    Answer: Hyperkalemia

    Hyperkalemia causes fatal cardiac arrhythmias and is the most immediately dangerous electrolyte abnormality in patients who miss dialysis treatments.