Final answer:
An opened vial of insulin lispro must be discarded after 28 days, whether it has been stored at room temperature or refrigerated, to maintain its potency and ensure patient safety.
Step-by-step explanation:
When handling insulin lispro, a rapid-acting insulin analog, it's important to know about proper storage and when to discard it to ensure its effectiveness in managing blood glucose levels. After a vial of insulin lispro is opened, it should be discarded after 28 days, regardless of whether it has been stored at room temperature or refrigerated. This guideline helps maintain insulin potency and patient safety, considering its role in the storage of glucose and regulation of blood glucose levels after high-glucose meals.
An opened vial of insulin lispro must be discarded after 28 days, whether it has been stored at room temperature or refrigerated, to maintain its potency and ensure patient safety.