The nurse provides sliding scale insulin administration instructions to an adult who was recently diagnosed with diabetes mellitus. The client demonstrates an understanding of the instructions provided by performing the procedure in which order? (Arrange with the first on top and the last on the bottom.)

A. Obtain blood glucose level: The first step is to check the client’s blood glucose so the correct insulin dose can be determined according to the sliding scale prescription. Without this value, safe and accurate dosing cannot be achieved. B. Draw insulin into insulin syringe: After verifying the prescription, the correct amount of insulin is drawn up. This ensures accuracy and avoids delays once the injection site has been prepared, maintaining sterility and efficiency. C. Verify the insulin prescription: Before drawing up the insulin, the nurse or client must compare the blood glucose result with the sliding scale prescription to determine the exact dose required. This prevents medication errors and ensures correct administration. D. Cleanse the selected site: The last step before injection is cleansing the skin with an alcohol swab. This minimizes infection risk and prepares the area for insulin administration after the correct dose has been measured.