PN Adult Medical Surgical Practice Exam

What is a key instruction for a client regarding their diabetes care and insulin administration?

1. Store insulin at room temperature for long periods.

2. Warm refrigerated insulin before using.

3. Use insulin within 28 days of opening.

4. Always mix insulin with water before administering.

The correct answer is: Use insulin within 28 days of opening.

The instruction to use insulin within 28 days of opening is essential for ensuring the effectiveness and safety of insulin therapy. After opening a new vial or pen, insulin can start to degrade over time due to exposure to air, light, and temperature changes. The 28-day guideline is a standard recommendation to help patients avoid using degraded insulin, which may not control blood glucose levels effectively and could result in poorly managed diabetes. While it is true that some insulins can be stored at room temperature for a limited time, storing them at room temperature for long periods can reduce their potency. Warming refrigerated insulin before use is recommended for comfort, but it should not be heated excessively or for prolonged periods. Mixing insulin with water is not a standard practice and could alter its intended effect and concentration. Therefore, the emphasis on using insulin within 28 days of opening aligns with best practices in diabetes care, ensuring patients maintain optimal blood glucose management.