A nurse is preparing to administer an intramuscular injection of penicillin G benzathine to a client who has syphilis. Which of the following actions should the nurse take?
A.
Use a 25-gauge needle and inject the medication into the deltoid muscle.
B.
Use a tuberculin syringe and inject the medication into the ventrogluteal muscle.
C.
Use an insulin syringe and inject the medication into the vastus lateralis muscle.
D.
Use a 20-gauge needle and inject the medication into the dorsogluteal muscle.
The Correct answer and Explanation is:
The correct answer is B. Use a tuberculin syringe and inject the medication into the ventrogluteal muscle.
Explanation:
When administering an intramuscular (IM) injection of penicillin G benzathine for a client with syphilis, it is essential to consider the medication’s viscosity, the site of injection, and the appropriate needle gauge. Penicillin G benzathine is a viscous medication and requires a larger gauge needle for effective administration. A tuberculin syringe is suitable in this context as it allows for precise dosage measurement.
The ventrogluteal muscle is the preferred site for IM injections of this type due to its deep location and minimal risk of injury to major nerves and blood vessels. This site is particularly recommended for larger volume injections, such as those required for penicillin G benzathine, which is often administered in doses of 2.4 million units for treating syphilis.
Option A suggests using a 25-gauge needle in the deltoid muscle, which is inappropriate for the administration of this medication. The deltoid muscle is typically used for smaller volume injections (up to 1 mL) and may not accommodate the volume required for the treatment of syphilis.
Option C recommends using an insulin syringe in the vastus lateralis muscle, which is also incorrect. Insulin syringes are designed for subcutaneous injections and may not provide the necessary gauge or volume capacity for IM injections.
Option D indicates using a 20-gauge needle in the dorsogluteal muscle. While a 20-gauge needle is appropriate for a viscous medication, the dorsogluteal site is less favored due to a higher risk of hitting the sciatic nerve and associated complications.
In summary, using a tuberculin syringe with the ventrogluteal muscle as the injection site ensures safe, effective, and accurate administration of penicillin G benzathine for treating syphilis.