Final answer:
The preferred sites for a 1.0 mL intramuscular injection are the deltoid muscle, the vastus lateralis muscle, and the ventrogluteal site. These sites are selected for their muscle mass and safety profile, avoiding bone, nerves, and blood vessels.
Step-by-step explanation:
The preferred sites for administering a 1.0 mL intramuscular injection to a 16-year-old client are the deltoid muscle of the arm, the vastus lateralis muscle of the thigh, and the ventrogluteal site on the hip. These sites are chosen for their large muscle mass and the low risk of hitting bone, nerves, or blood vessels.
The deltoid muscle is easily accessible and commonly used for vaccinations, as shown in Figures 33.18 and 42.18. It is appropriate for small to medium volume injections. The vastus lateralis, which is the side portion of the thigh, is another preferred IM (intramuscular) injection site, especially for larger volumes and in patients who are less mobile. The ventrogluteal site, which involves the gluteus medius and minimus muscles, is highly recommended for intramuscular injections due to its lack of major nerves and blood vessels, offering a safer option for administering medications.
The selection of the appropriate injection site may also depend on the type of medication, the volume of the medication to be administered, the patient's age and body mass, and the patient's mobility status. Assessment of the patient and clinical judgment should always guide the choice of the injection site.