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Surgical Equipment Technology Flashcards

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

Read the first 7 Surgical Equipment Technology flashcards as text

  1. A pneumatic tourniquet used in orthopedic surgery is displaying pressure that fluctuates ±30 mmHg during inflation. The MOST likely cause is:

    Answer: Leak in the cuff bladder or connecting tubing

    Pressure fluctuations in a pneumatic tourniquet are most commonly caused by air leaks in the cuff bladder or tubing connections.

  2. Which safety feature prevents inadvertent activation of an electrosurgical unit when the active electrode is not in use?

    Answer: Holster with passive safety switch

    A holster with a passive safety switch deactivates the active electrode output when placed in the holster, preventing accidental burns.

  3. During arthroscopic surgery, the fluid pump pressure is set to 60 mmHg but the surgeon reports poor visualization. What should the BMET check FIRST?

    Answer: Integrity of the arthroscope sheath seals and outflow cannula patency

    Leaking sheath seals or blocked outflow cannulas prevent adequate joint distension, causing poor visualization despite correct pump settings.

  4. What is the primary hazard associated with improper grounding of a surgical robot in the OR?

    Answer: Leakage current could flow through the patient, causing burns or cardiac events

    Improper grounding of electrically powered equipment in the OR can create leakage current paths through the patient, posing serious electrical safety risks.

  5. A harmonic scalpel generates heat through which mechanism?

    Answer: Ultrasonic vibration causing molecular friction within tissue

    Harmonic scalpels use ultrasonic vibration (typically 55,500 Hz) that causes rapid protein denaturation through molecular friction, achieving cutting and coagulation simultaneously.

  6. When performing electrical safety testing on a powered surgical drill, which test is used to verify that current does not flow through the equipment's chassis to ground during normal operation?

    Answer: Chassis leakage current test

    The chassis leakage current test measures any unintended current flowing from the equipment chassis to ground, ensuring patient and user safety.

  7. A surgical headlight powered by a fiber optic light source produces uneven illumination with a dark center spot. The MOST probable cause is:

    Answer: Broken fiber bundles at the center of the light guide cable

    Broken optical fibers, especially centrally located ones, create dark spots in the illumination pattern because those fibers no longer transmit light.