A nurse is preparing to administer 2.5 mL of medication intramuscularly to an adult client. Which of the following is the safest site for the nurse to use?

A. Ventrogluteal: The ventrogluteal site is preferred for intramuscular injections in adults because it is well away from major nerves and blood vessels, can safely accommodate larger volumes (up to 3 mL), and has a thick muscle mass, reducing the risk of injury. B. Dorsogluteal: The dorsogluteal site is associated with a higher risk of sciatic nerve injury and is less preferred for intramuscular injections, especially for larger volumes. Its use is generally discouraged in adults. C. Vastus lateralis: The vastus lateralis is safe for intramuscular injections, particularly in infants and toddlers, and can accommodate moderate volumes. However, in adults, the ventrogluteal site is safer and more comfortable for larger injections. D. Rectus femoris: The rectus femoris is rarely used for intramuscular injections in adults because it is less accessible, more painful, and carries a higher risk of injury to underlying structures. It is generally reserved for self-injection or special circumstances.