Methylphenidate patch can be applied to the following skin sites: select the classification.

• A. All of the choices are correct.
• B. Three of the choices are correct.
• C. Two of the choices are correct.
• D. One of the choices is correct.

Answer: (D)

Transdermal methylphenidate patches must be placed on a specific skin site to ensure consistent absorption and minimize irritation. The approved site is the hip area (usually the outer hip), and the skin should be clean and dry. Rotating between the left and right hip helps reduce skin irritation over time. Other common sites such as the arm, thigh, abdomen, or chest are not considered appropriate because absorption can be inconsistent and the patch may encounter more friction or skin irritation, affecting the dose delivered.

Since only one site is approved for proper application, only one choice in the list is correct. The correct classification is that one of the choices is correct.