In teaching the Z-track method for administering hydroxyzine hydrochloride, what is the key benefit of this technique?

The Z-track method is specifically designed to minimize the risk of subcutaneous infiltration of the medication. By using this technique, the skin and tissue are displaced laterally before the needle is inserted and the medication is injected into the muscle. Once the injection is complete and the needle is withdrawn, the displaced tissue returns to its original position, effectively sealing the medication within the muscle and preventing it from leaking into the subcutaneous layer.

This technique is particularly beneficial when administering medications that can be irritating to the subcutaneous tissue or when there's a potential for the medication to cause staining or irritation if it were to leak out. Therefore, the primary advantage of the Z-track method lies in its ability to decrease the risk of subcutaneous infiltration of the medication, ensuring that it remains in the intended muscle tissue for effective delivery.