A nurse is reinforcing teaching with a client who was diagnosed with diabetes mellitus and requires Insulin injections. Which of the following client statements indicates an understanding of the teaching?

A. "I should dispose of my used syringes in the household trash.": Used insulin syringes are considered sharps and must be disposed of in an approved, puncture-resistant sharps container to prevent injury and potential disease transmission. Discarding them in regular trash poses a safety risk to household members and waste handlers. B. "I will store my current bottle of insulin in the refrigerator.": Open insulin in use can generally be kept at room temperature for a limited period (usually 28 days for most types) to prevent discomfort during injection and reduce the risk of injection site irritation. Refrigeration is recommended for unopened insulin, but ongoing use at room temperature is safe and more comfortable. C. "I will hold the needle at a 15° angle to my skin.": Subcutaneous insulin injections are typically administered at a 90° angle to ensure proper delivery into the subcutaneous tissue. A 15° angle would be too shallow, increasing the risk of intradermal injection and affecting insulin absorption. D. "I should use an injection site that is 1 inch from the previous site.": Rotating injection sites within the same area by at least 1 inch helps prevent lipohypertrophy and tissue damage, ensuring consistent absorption of insulin. This practice demonstrates proper understanding of safe and effective insulin administration.