Final answer:
Glipizide (Glucotrol) is not an oral insulin. It is an oral antidiabetic medication that belongs to the sulfonylurea class.
Step-by-step explanation:
The nurse should respond with option B) No. Glipizide (Glucotrol) is not an oral insulin. It is an oral antidiabetic medication that belongs to the sulfonylurea class. It works by stimulating the release of insulin from the pancreas, but it is not insulin itself. Insulin is a hormone that is naturally produced by the body and is administered through injection for individuals with diabetes who cannot produce enough insulin on their own.