The practical nurse (PN) is observing a client self-administer the morning dose of subcutaneous insulin. For which component of the injection technique should the PN provide the client with additional information?

A. Removes any air bubbles in syringe to ensure correct dosage: Expelling air bubbles before injection is proper technique, as it ensures that the full insulin dose is administered accurately. This step helps prevent underdosing and promotes consistent blood glucose control. B. Injects into the same site selected for the previous dose: Repeatedly using the same injection site can lead to lipohypertrophy, thickened, fatty areas under the skin that interfere with insulin absorption. Clients should rotate injection sites within the same anatomical area to maintain consistent absorption and prevent tissue damage. C. Uses a circular action when applying an alcohol pad to the site: Cleaning the site with a circular motion from the center outward is the correct technique to reduce surface bacteria. Allowing the area to dry before injection further minimizes discomfort and risk of infection. D. Injects air into the insulin vial to displace the dose: Injecting air equal to the amount of insulin to be withdrawn prevents a vacuum from forming in the vial. This technique facilitates easier and more accurate withdrawal of the medication.