APHA Cold Chain Management & Vaccine Storage 2

Question 1

A refrigerator unit is found with a minimum/maximum thermometer reading of 1°C min and 11°C max over the weekend. What is the correct response?

Accepted Answer

Quarantine all vaccines and contact the state immunization program for guidance

Answer

Temperatures outside the 2–8°C range require quarantining affected vaccines and consulting the state or local immunization program before use or discard.

Question 2

Which of the following vaccine types is MOST sensitive to freezing temperatures?

Accepted Answer

Hepatitis B vaccine

Answer

Hepatitis B vaccine is a killed/inactivated vaccine that is highly sensitive to freezing, which permanently damages the adjuvant and renders it ineffective.

Question 3

What is the recommended placement of vaccines within a refrigerator unit to maintain proper cold chain?

Accepted Answer

Store on middle shelves away from walls, floor, and door

Answer

Vaccines should be stored on middle shelves away from unit walls, floor, and doors to avoid temperature extremes and air circulation issues.

Question 4

A continuous electronic temperature monitoring device (data logger) should have a reading interval no greater than:

Accepted Answer

30 minutes

Answer

CDC recommends data loggers record temperatures at intervals no greater than 30 minutes to ensure excursions are detected promptly.

Question 5

When receiving a vaccine shipment, which action should be performed FIRST?

Accepted Answer

Inspect packaging for signs of temperature excursion using indicators

Answer

Inspecting the shipping container and temperature indicators first determines whether the cold chain was maintained during transport before any other action.

(APHA) American Public Health Association Immunization Certification Practice Test

(APHA) American Public Health Association Immunization Certification Practice Test

APHA Cold Chain Management & Vaccine Storage 2