skip to main content

Insulin storage — GPhC CRA MCQ

Instant feedback + full explanation. One question, done properly.

ModerateDispensing and SupplyInsulin storageGPhC CRA

A patient collects insulin glargine pens and says the previous box was stored beside a radiator for 2 days during a house move. The pens looked clear and were then put back into the fridge. She asks whether they are safe to use. What would you advise the patient?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: D — Check product storage limits and advise replacement if temperature excursion is outside guidance

Insulin potency can be affected by exposure outside recommended temperature ranges, even if the solution looks clear. The pharmacist should check the product-specific storage information and assess the excursion. If outside permitted limits, replacement should be arranged. Freezing, shaking or dose doubling is unsafe.

Reference: BNF Insulins; Product SmPC