A vaccine refrigerator is found at 0°C during the morning inspection. Which group of vaccines is most at risk of damage from this temperature?

Correct answer: A. Freeze-sensitive vaccines such as pentavalent and hepatitis B

  • A. Freeze-sensitive vaccines such as pentavalent and hepatitis B
  • B. Heat-sensitive vaccines such as oral polio vaccine
  • C. Only vaccines that have passed their expiry date
  • D. Only vaccines supplied in multidose vials

Explanation

Temperatures at or below freezing can damage freeze-sensitive vaccines, including pentavalent and hepatitis B vaccines. The nurse should quarantine the affected vaccines and follow the immunisation programme’s temperature-excursion procedure rather than using them automatically.

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