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

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  1. Which of the following BEST describes the 'buttonhole' cannulation technique for AV fistulas?

    Answer: Using the same needle insertion site and angle every treatment to create a track

    The buttonhole technique uses the exact same puncture site and angle repeatedly, forming a fibrous tunnel that allows blunt needle insertion and reduces trauma.

  2. A patient's access recirculation is measured at 25%. What does this indicate?

    Answer: Dialyzed blood is re-entering the arterial needle, reducing treatment efficiency

    High recirculation (>10–15%) means already-dialyzed blood re-enters the arterial needle, diluting the uremic blood and significantly reducing Kt/V.

  3. Which parameter is adjusted on the dialysis machine to control the rate of fluid removal from the patient?

    Answer: Ultrafiltration rate (UFR)

    The ultrafiltration rate directly controls the volume of fluid removed per hour through convective transport across the dialyzer membrane.

  4. OSHA's Bloodborne Pathogens Standard requires that hemodialysis technicians use which type of precautions with all patients?

    Answer: Standard (Universal) Precautions with all patients

    Standard Precautions treat all patient blood and body fluids as potentially infectious, requiring gloves, face protection, and gowns as appropriate.

  5. A hemodialysis patient with a serum phosphorus of 7.2 mg/dL is MOST likely to require which intervention?

    Answer: Phosphate binder therapy and dietary phosphorus restriction

    Hyperphosphatemia in dialysis patients is managed with phosphate binders taken with meals and limiting dietary intake of phosphorus-rich foods.

  6. What is the MOST important reason to document the pre-treatment weight of a hemodialysis patient?

    Answer: To determine the ultrafiltration goal and ensure appropriate fluid removal

    Pre-treatment weight compared to the patient's dry weight (target weight) determines how much fluid (ultrafiltration volume) must be removed during the treatment.

  7. Which of the following water treatment components is responsible for removing chloramines from municipal water before it enters the reverse osmosis system?

    Answer: Activated carbon filter

    Activated carbon filters adsorb chlorine and chloramines, which would otherwise destroy the reverse osmosis membrane and cause hemolysis in patients.