How is intradermal medication administered?

Intradermal medication administration involves injecting the medication into the dermis, which is the layer of skin just below the epidermis. This method is typically used for diagnostic purposes, such as allergy testing and tuberculosis screening, as it allows the medication to be absorbed slowly and effectively by the body. The injection creates a small wheal or bleb, indicating that the medication has been properly administered.

The correctness of this method lies in its specific technique, which is distinct from other routes of administration. For instance, injections into a muscle deliver medication deep into the muscle tissue, while dissolution under the tongue (sublingual) allows for quick absorption into the bloodstream without passing through the digestive system. Furthermore, applying medication on the surface of the skin usually refers to topical treatments that do not penetrate deeply into the dermis. Therefore, the intradermal route is unique in its placement and intended purpose, making it suitable for specific applications in medical practice.