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
Which of the following best describes an 'active' cold chain system used in vaccine transport?
Answer: A system using electrically powered refrigeration units to maintain temperature during transport
Active cold chain systems use powered refrigeration (e.g., refrigerated vehicles or portable electric coolers) to actively maintain temperature, unlike passive systems that rely on insulation and ice.
According to CDC storage guidelines, what is the minimum clearance vaccines should have from the walls, floor, and ceiling of a refrigeration unit?
Answer: 2–3 inches (5–8 cm)
Vaccines should have 2–3 inches of clearance from walls, floor, and ceiling to allow adequate cold air circulation and prevent temperature extremes.
What is the purpose of a Vaccine Vial Monitor (VVM)?
Answer: To indicate whether a vaccine vial has been exposed to excessive heat over time
A VVM is a heat-sensitive label on the vial that darkens irreversibly with cumulative heat exposure, indicating the vaccine may no longer be potent.
A clinic has a backup generator. During a power outage, what additional step is critical before relying on the generator to maintain vaccine storage?
Answer: Test the generator monthly and ensure it automatically activates during power loss
Monthly generator testing and confirmed automatic activation ensures it will function reliably during an actual power outage without manual intervention.
When stacking vaccine boxes inside a refrigerator, providers must ensure that:
Answer: Boxes are arranged to allow cold air to circulate freely between them
Air must circulate freely around vaccine packaging to maintain uniform temperature; tightly packed boxes create warm pockets that can compromise potency.
A provider is closing a satellite vaccination clinic at the end of the day. Which vaccines should be returned to the main storage unit?
Answer: All remaining vaccines that have been temperature-monitored and maintained within the required range throughout the session
Vaccines that have been continuously maintained within required temperature ranges and documented accordingly can be returned to main storage and used in future sessions.
Which regulatory body sets the official vaccine storage and handling requirements that VFC providers must follow in the United States?
Answer: The Centers for Disease Control and Prevention (CDC) through the VFC program
The CDC administers the VFC program and publishes the official Vaccine Storage and Handling Toolkit that all VFC providers must follow.