Practice Test Geeks(CABT) Certified Associate in Biomedical Technology Practice Test
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Laboratory Equipment Flashcards

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

Read the first 7 Laboratory Equipment flashcards as text

  1. Which type of centrifuge is specifically designed to separate blood components by spinning at low speeds (400-1200 RPM)?

    Answer: Blood bank centrifuge

    Blood bank centrifuges operate at low speeds optimized for separating red cells, plasma, and platelets without damaging fragile blood components.

  2. A biomedical technician notices a pH meter gives inconsistent readings. The FIRST corrective step should be:

    Answer: Recalibrate with fresh buffer solutions

    Recalibration with fresh, properly prepared buffer solutions is always the first step when troubleshooting inconsistent pH meter readings.

  3. What is the primary function of a laminar flow hood in a clinical laboratory?

    Answer: To provide a sterile work environment by directing HEPA-filtered air over the work surface

    Laminar flow hoods direct HEPA-filtered air in a unidirectional flow over the work surface to protect samples and cultures from contamination.

  4. A hematology analyzer flags a specimen with clogged apertures. Which maintenance procedure should be performed?

    Answer: Run a bleach solution followed by rinse cycles

    Running a bleach (sodium hypochlorite) cleaning solution followed by rinse cycles dissolves protein and fibrin clogs in aperture tubes.

  5. Which pipette type delivers the most accurate volumes for analytical chemistry procedures?

    Answer: Volumetric pipette

    Volumetric pipettes are calibrated to deliver a single, precise volume (TC or TD) and are the most accurate for analytical work.

  6. When performing preventive maintenance on an autoclave, which parameter is most critical to verify?

    Answer: Chamber temperature distribution and sterilization cycle time

    Temperature distribution across the chamber and accurate cycle timing are critical to confirm that sterilization parameters are consistently met.

  7. A refrigerated specimen storage unit in the lab reads 8°C instead of the required 2-8°C upper limit alarm. What should the technician do FIRST?

    Answer: Immediately move all specimens to another unit and report the excursion

    Specimens must be relocated to a qualified unit immediately, and the temperature excursion must be documented and reported per laboratory protocol.