After teaching a client with diabetes mellitus to inject insulin, the nurse assesses the client's understanding. Which statement made by the client indicates a need for additional teaching?

Choice A rationale: This statement is incorrect. While the abdomen is a preferred injection site due to its large subcutaneous fat layer and consistent absorption, the proximity to the pancreas is not the reason. The pancreas's location is irrelevant to where insulin is absorbed and distributed systemically. The statement shows a misunderstanding of anatomy and pharmacology. Choice B rationale: This is a correct statement. Using different areas within the same site, such as the thigh, is a good practice for rotating injection spots. It helps prevent lipodystrophy (fat hypertrophy or atrophy) and ensures consistent insulin absorption. The thigh is an appropriate injection site. Choice C rationale: This is a correct statement. Rotating injection sites within one area, such as the abdomen, minimizes the risk of tissue damage and the formation of scar tissue or lumps (lipohypertrophy). These reactions can alter insulin absorption, making blood glucose management unpredictable. Choice D rationale: This is a correct statement. Insulin absorption rates vary between different injection sites. The abdomen generally has the fastest absorption, followed by the arm, thigh, and buttocks. This is due to differences in blood flow and subcutaneous tissue composition. Changing sites can thus change absorption rates.