What is the first step in applying a new transdermal patch?

When administering a new transdermal patch, the first step is to remove the old patch. This is crucial because it prevents the potential for double dosing, which could lead to an overdose or adverse reactions due to increased levels of medication in the system. Ensuring that the skin surface is free of the old patch before applying a new one also helps to maintain proper absorption of the medication and ensures that the skin is prepared for the new patch.

While washing hands thoroughly is an important step in maintaining hygiene, it typically occurs after the patch has been removed and before applying the new one. Therefore, removing the old patch is essential to ensure safe and effective medication administration.