Certified Wound Ostomy Nurse (CWON) Practice Test

What does crusting refer to?

1. Flat spot of color change greater than 0.5cm in diameter

2. Scab of dried exudate of body fluid, blood, or pus

3. Raised spot of color change greater than 0.5cm in diameter

4. Loose, stringy, nonviable tissue

The correct answer is: Scab of dried exudate of body fluid, blood, or pus

Crusting specifically refers to the formation of a scab made up of dried exudate, which may come from body fluids, blood, or pus. This phenomenon typically occurs on wounds as part of the body's natural healing process, providing a protective barrier over the affected area. The dried exudate serves to minimize further fluid loss and protects underlying tissues from potential infection. In the context of wound care, recognizing crusting is essential because it signifies that healing is underway. In many cases, this crust can be a normal part of the wound healing phase, indicating that the body is responding appropriately to tissue damage. Understanding the nature of crusting can aid wound ostomy nurses in evaluating the status of a wound, determining if interventions are needed, or if the healing process is proceeding normally. It is also crucial for differentiating crusting from other wound features, which might indicate different healing stages or complications.