A nurse is teaching a client who has diabetes mellitus and a new prescription for a combination of lispro insulin and NPH insulin. Which of the following statements by the client indicates an understanding of the teaching?

A. "I should eat within 1 hour after my injection.": Rapid-acting insulin like lispro should be administered immediately before or with a meal, not up to an hour before. Waiting too long to eat increases the risk of hypoglycemia. B. "I will expect the lispro insulin to be cloudy.": Lispro insulin is clear, whereas NPH insulin is cloudy. Confusing the appearance of the insulins may lead to administration errors. C. "I will mix these medications in one syringe.": Lispro (rapid-acting) and NPH (intermediate-acting) insulins can be mixed in one syringe following proper technique, which simplifies administration and maintains effective glycemic control. D. "I should draw up the NPH insulin first.": When mixing insulins, the rapid-acting insulin (lispro) should be drawn up first, followed by NPH, to prevent contamination of the rapid-acting insulin and maintain proper pharmacokinetics.