Practice Test Geeks(APHA) American Public Health Association Immunization Certification Practice Test
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Cold Chain Management & Vaccine Storage Flashcards

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

Read the first 7 Cold Chain Management & Vaccine Storage flashcards as text

  1. A power outage occurs at a clinic at 5 PM on a Friday. The refrigerator has a calibrated data logger and insulated walls. What is the most appropriate immediate action?

    Answer: Keep the refrigerator door closed and monitor temperature; transfer only if temperature rises above 8°C

    Keeping the refrigerator door closed preserves cold as long as possible; vaccines should be transferred to a backup unit only if temperature rises out of range.

  2. The 'shake test' (agitation test) is used to identify freezing damage in which type of vaccine?

    Answer: Adjuvanted inactivated vaccines

    The shake test detects flocculation (clumping) caused by freeze-damaged adjuvant in inactivated vaccines such as hepatitis B and DTaP.

  3. Which temperature range is required for storing varicella vaccine?

    Answer: -15°C to -25°C (freezer, ≤-15°C)

    Varicella vaccine must be stored frozen at -15°C or colder (optimally -25°C to -15°C), separate from refrigerated vaccines.

  4. How often should a certified calibration report be obtained for a digital data logger used in vaccine storage?

    Answer: Every year or per manufacturer recommendation, whichever is sooner

    CDC recommends data loggers be calibrated annually or per manufacturer specifications to ensure measurement accuracy.

  5. A nurse notices that the alarm on the vaccine refrigerator was disabled by a colleague 'to stop the beeping.' What is the appropriate response?

    Answer: Re-enable the alarm immediately and document the incident

    Alarms must remain active to alert staff of excursions; disabling them is a cold chain protocol violation that must be corrected and documented immediately.

  6. What does the term 'vaccine cold chain coordinator' refer to in a clinic setting?

    Answer: A designated staff member accountable for cold chain management at that site

    Each immunization site should designate a primary and backup vaccine coordinator responsible for storage, monitoring, and emergency response.

  7. Which situation would make a vaccine refrigerator NON-compliant with CDC storage guidelines?

    Answer: Storing water bottles on the door

    Door shelves have the most temperature variability and should not be used to store vaccines or as vaccine buffer material that occupies vaccine space.