Question

Since an IM injection delivers medication into the muscle, you best determine the appropriate needle length by assessing

A. the preferred site for injection
B. the patient's muscle mass and weight
C. the viscosity of the medication

Answer 1

The appropriate needle length for an IM injection is determined by assessing the preferred site, the patient's muscle mass and weight, and the viscosity of the medication.

Step-by-step explanation:

The appropriate needle length for an intramuscular (IM) injection is best determined by assessing the preferred site for injection, the patient's muscle mass and weight, and the viscosity of the medication.

Assessing the preferred site for injection is important because different muscles may require different needle lengths. For example, the deltoid muscle in the arm requires a shorter needle length compared to the gluteal muscles in the buttocks.

The patient's muscle mass and weight are also factors to consider. Thicker muscles may require a longer needle to ensure the medication reaches the intended site.

The viscosity of the medication refers to its thickness or consistency. If the medication is highly viscous, a longer needle may be needed to ensure proper delivery into the muscle.