Which description corresponds to serous drainage?

• A. Blood-tinged
• B. Thick, yellow-green purulent
• C. Clear, watery plasma-like fluid
• D. Blood-filled

Answer: (C)

Serous drainage is a clear, watery fluid that resembles plasma. It is thin, pale, and watery, often seen in the early stage of wound healing as part of the normal inflammatory response. This type indicates healing progress without infection or active bleeding. The description of clear, watery plasma-like fluid matches serous drainage. The other descriptions describe blood-tinged or bloody fluid, purulent pus, or blood-filled drainage, none of which are serous.