A nurse is preparing to administer a subcutaneous injection to a client. Which of the following sites should the nurse choose?

Rationale: A. Ventrogluteal: The ventrogluteal site is preferred for intramuscular injections because it provides a large muscle mass with minimal risk of injury to nerves or blood vessels. It is not appropriate for subcutaneous injections, which require sites with adequate subcutaneous tissue rather than deep muscle. B. Vastus lateralis: The vastus lateralis is commonly used for intramuscular injections, especially in infants and young children. For adults, it is not a typical site for subcutaneous injections due to the thicker muscle and risk of intramuscular delivery. C. Forearm: The forearm is generally reserved for intradermal injections, such as tuberculin testing. Its limited subcutaneous tissue makes it unsuitable for subcutaneous injections intended to be absorbed slowly. D. Upper thigh: The anterior or lateral aspect of the upper thigh provides an adequate layer of subcutaneous tissue, making it a safe and effective site for subcutaneous injections. It allows for slower absorption of medication and is easily accessible for the nurse.