Which action is NOT part of wound care by a CNA?

Administering medications is not part of wound care performed by a Certified Nursing Assistant (CNA). This task requires a level of training and responsibility that is typically reserved for licensed nurses or doctors, as it involves understanding pharmacology, potential side effects, and specific medical protocols.

In contrast, following the nurse's instructions is crucial, as it ensures that the CNA is adhering to the care plan and performing tasks correctly. Ensuring the area is clean and dry is vital for preventing infections and promoting proper healing. Washing hands before and after care is a fundamental practice to maintain hygiene and protect both the patient and the healthcare provider from infections. Each of these tasks is aligned with the CNA's role in supporting safe and effective patient care.