Which of the following is NOT a recognized route of medication administration?

The correct answer is that transdermal is indeed a recognized route of medication administration, which is why the choice is incorrect. The routes of medication administration include oral, inhalation, transdermal, and rectal, among others.

Transdermal administration refers to the delivery of medication through the skin for systemic effects, commonly using patches that allow for a controlled release of medication over time. This method is well-established in the medical field for conditions such as chronic pain management or hormone replacement therapy.

Oral administration involves taking medication by mouth, which is one of the most common and convenient routes. Inhalation delivers medication directly to the respiratory system and is often used for conditions such as asthma. Rectal administration is utilized when other routes are not feasible, such as in patients who are vomiting or unconscious.

Each of these routes serves its purpose based on the medication's form and the clinical scenario, emphasizing that transdermal is indeed a valid and recognized method of administration.