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High-Level Disinfection Flashcards

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

Read the first 7 High-Level Disinfection flashcards as text

  1. Automated endoscope reprocessors (AERs) offer which primary advantage over manual HLD?

    Answer: They provide standardized, reproducible disinfection cycles with reduced worker exposure

    AERs deliver consistent contact time, concentration, and rinsing, reducing human error and minimizing staff exposure to chemical disinfectants.

  2. Once activated (mixed with activator), a typical glutaraldehyde HLD solution has a reuse life of:

    Answer: 28 days

    Most 2% activated glutaraldehyde solutions have a reuse life of 28 days from activation, though daily MEC testing may shorten actual use if concentration drops below MEC earlier.

  3. Accelerated hydrogen peroxide (AHP) used for high-level disinfection is considered advantageous because:

    Answer: It has low toxicity and breaks down into water and oxygen

    AHP degrades into water and oxygen, making it environmentally friendly with low worker toxicity compared to aldehyde-based agents.

  4. Which documentation element is MOST critical to record when performing high-level disinfection?

    Answer: MEC test result, contact time, date, technician ID, and device identifier

    Complete HLD records including MEC test results, contact time, date, technician ID, and device identifier ensure traceability and demonstrate that validated parameters were met.

  5. Before selecting a high-level disinfectant for a specific device, the reprocessing technician should FIRST consult:

    Answer: The device manufacturer's Instructions for Use (IFU)

    The device manufacturer's IFU specifies compatible disinfectants, concentrations, and contact times validated for that specific device without causing damage.

  6. The 'reuse life' of an HLD solution differs from 'use life' in that reuse life refers to:

    Answer: The total calendar time from activation the solution may be used, assuming MEC is maintained

    Reuse life is the maximum number of days an activated solution may remain in service (e.g., 28 days for glutaraldehyde), provided MEC testing confirms adequate concentration before each use.

  7. When disposing of used glutaraldehyde HLD solution, the technician should:

    Answer: Follow local regulations, which may require neutralization or specific disposal procedures

    Glutaraldehyde disposal is regulated in many jurisdictions; facilities must follow local sewer authority limits and may require neutralization, dilution, or contracted hazardous waste removal.