Wound, Ostomy and Continence Nurses Society (WOCN) Practice Exam

What does erythema refer to?

1. Loss of superficial skin layer

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

3. Generalized redness

4. Proliferating tissue made of capillary networks

The correct answer is: Generalized redness

Erythema refers specifically to a generalized redness of the skin, often caused by increased blood flow to the capillaries in the area. This increased blood flow can result from various factors, such as inflammation, infection, or an allergic reaction. The redness can occur in small patches or cover larger areas of the skin and is a visible sign that indicates a potential underlying condition that may need further assessment or treatment. The other options describe different skin conditions or phenomena. Loss of the superficial skin layer pertains to abrasions or wounds, while a scab refers to the dried layer that forms over a wound as part of the healing process. Proliferating tissue made of capillary networks refers to granulation tissue, which is involved in healing but is not synonymous with erythema. Thus, understanding that erythema signifies generalized redness provides a clear distinction from these other terms.