Certified Clinical Medical Assistant Exam Practice Question

Correct Answer: B

Rationale: Insulin should ideally be stored in the refrigerator to maintain its potency and effectiveness. Storing it at room temperature (Option A) is acceptable for short periods, but prolonged exposure can degrade the insulin. Direct sunlight (Option C) can also damage insulin, leading to reduced efficacy, making it an unsuitable storage method. Freezing (Option D) can cause insulin to become ineffective and unusable, as the extreme cold can alter its chemical structure. Therefore, refrigeration is the best practice for preserving insulin quality.