A nurse is developing a teaching plan for an older adult client who has a new prescription for insulin glargine. Which of the following expected outcomes should the nurse include in the plan?

The correct answer is D: The client will wear his reading glasses when drawing up a dose of insulin glargine. This is important because insulin dosages need to be precise, and using reading glasses ensures accurate measurement, reducing the risk of under- or overdosing. Using the deltoid muscle as an injection site (A) is not appropriate for insulin glargine, as it should be injected into the subcutaneous tissue of the abdomen, thigh, or upper arm. Administering insulin glargine before each meal (B) is incorrect as it is a long-acting insulin usually given once daily at the same time. Taking an additional dose prior to exercise (C) is not necessary and can lead to hypoglycemia.