Why does the nurse need to read the package insert to see if a vaccine has been properly stored ...

C

Feedback
A Incorrect. The nurse needs to read the package insert to see if a vaccine has been properly stored before administering the vaccine but not because improper storage will frequently cause the vaccine to be more virulent.
B Incorrect. The nurse needs to read the package insert to see if a vaccine has been properly stored before administering the vaccine but not because an improperly stored vaccine can clog the needle, leading to an infiltration.
C Correct. The nurse needs to read the package insert to see if a vaccine has been properly stored before administering the vaccine because improper storage or handling can result in a decrease in vaccine potency and ineffective immunization.
D Incorrect. The nurse needs to read the package insert to see if a vaccine has been properly stored before administering the vaccine but not because the vaccine may be too hot or too cold to inject into the muscle or subcutaneous areas.