A 57-year-old man using insulin glargine brings a pen that has been frozen in his car overnight and then thawed. He asks if it is safe because it

Question

A 57-year-old man using insulin glargine brings a pen that has been frozen in his car overnight and then thawed. He asks if it is safe because it looks clear. What would you advise the patient?

Accepted Answer

Do not use the frozen pen and arrange replacement insulin promptly

Answer

Use the pen if the solution remains clear

Answer

Shake the pen vigorously to restore potency

Answer

Warm the pen in hot water before each injection

Answer

Use a double dose to compensate for freezing

Insulin storage — GPhC CRA MCQ

A 57-year-old man using insulin glargine brings a pen that has been frozen in his car overnight and then thawed. He asks if it is safe because it looks clear. What would you advise the patient?