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Clinical Procedures & Techniques 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 Clinical Procedures & Techniques flashcards as text

  1. A technician sets up an infusion pump for a pediatric patient. The pump alarms 'occlusion' immediately after starting. Which is the FIRST troubleshooting step?

    Answer: Check tubing for kinks, closed clamps, or positional blockages

    Physical obstructions (kinks, clamps, needle position) are the most common cause of occlusion alarms and must be ruled out before any other intervention.

  2. In pulse oximetry, the 'perfusion index' (PI) displayed on some monitors indicates:

    Answer: The strength of the pulsatile signal relative to the non-pulsatile signal

    Perfusion index is the ratio of the pulsatile (AC) to non-pulsatile (DC) component of the light signal, reflecting the strength of peripheral perfusion at the sensor site.

  3. Which standard governs the electrical safety testing intervals and methods for medical electrical equipment in US healthcare facilities?

    Answer: IEC 62353

    IEC 62353 'Medical electrical equipment — Recurrent test and test after repair' specifically addresses in-service safety testing protocols and intervals.

  4. When calibrating a tonometer (used for intraocular pressure measurement), the reference weight used for calibration represents what physical principle?

    Answer: Force required to flatten a defined area of the cornea

    Applanation tonometry measures the force required to flatten a 3.06 mm diameter area of the cornea, and calibration weights simulate known IOP values.

  5. A surgical team reports that the monopolar electrosurgery unit (ESU) causes interference with an implanted cardiac pacemaker. The SAFEST recommendation is to:

    Answer: Use bipolar electrosurgery and keep ESU current path away from the pacemaker

    Bipolar electrosurgery confines current to a small local area, greatly reducing electromagnetic interference with implanted devices compared to monopolar current paths.

  6. During a neonatal incubator performance check, the technician measures temperature uniformity. The maximum allowable temperature variation within the incubator workspace per IEC 60601-2-19 is:

    Answer: ±1.0°C

    IEC 60601-2-19 specifies that the temperature within the neonatal incubator workspace must not vary by more than ±1.0°C from the set temperature at any point.

  7. In high-level disinfection (HLD) of reusable semicritical devices, the minimum effective glutaraldehyde concentration for achieving HLD at room temperature is typically:

    Answer: 2.0%

    A minimum concentration of 2.0% glutaraldehyde is required for high-level disinfection; concentrations below this threshold may not reliably inactivate mycobacteria and other resistant organisms.