Certified Diabetes Care and Education Specialist (CDCES) Practice Exam

Which statement about insulin storage is TRUE?

1. Storage for opened and unopened insulin is the same.

2. Opened but not unopened vials can be room temperature for 1 month.

3. Unopened insulin can be used after expiration if refrigerated.

4. Insulin storage guidelines vary by insulin type.

The correct answer is: Insulin storage guidelines vary by insulin type.

The statement regarding insulin storage that is true highlights the variability in storage guidelines depending on the type of insulin. Different insulins, such as rapid-acting, long-acting, and premixed formulations, have specific storage instructions that may differ in terms of how they should be kept before and after opening. For example, some insulins can be stored at room temperature for a certain period after being opened, while unopened vials typically have a longer shelf life if refrigerated, and specific types may have unique temperature tolerances. Understanding these differences ensures that patients maintain the integrity and potency of the insulin they are using, promoting effective diabetes management.