Which of the following is a critical guideline for insulin storage?

Storing insulin properly is crucial for maintaining its effectiveness, and the guideline to not freeze insulin is a key aspect of this. Insulin should be kept at the recommended temperature, which is typically between 36°F and 46°F (2°C and 8°C) when not in use. Freezing insulin can cause it to become less effective or even entirely ineffective, as the structure of the insulin molecule can be altered when subjected to extreme cold.

Ensuring that insulin is not exposed to freezing temperatures means that it will retain its potency, allowing individuals who use it to manage their diabetes effectively. Proper storage practices are essential to ensure the safety and efficacy of medications, particularly insulin, which is a life-sustaining treatment for many people.