Wisconsin Certified Nursing Assistant (CNA) Practice Exam

What can excessive pressure on certain areas of the body lead to?

1. Increased blood flow

2. Elimination of fatigue

3. Pressure ulcers or tissue damage

4. Improved skin health

The correct answer is: Pressure ulcers or tissue damage

Excessive pressure on certain areas of the body can lead to pressure ulcers, also known as bedsores or decubitus ulcers, as well as tissue damage. This occurs when there is prolonged pressure that disrupts blood flow to the skin and underlying tissues, particularly over bony prominences where the skin is thinner and more vulnerable. When pressure is not relieved, the skin and tissue can break down, leading to an ulcer that can become infected if not treated appropriately. Risk factors for developing pressure ulcers include immobility, poor nutritional status, humidity, friction, and moisture. Understanding this mechanism is crucial for CNAs, who are often responsible for monitoring patients' skin condition and repositioning them to prevent such injuries. In contrast, other options such as increased blood flow, elimination of fatigue, or improved skin health do not reflect the outcomes of excessive pressure and, in fact, are the opposite of what typically occurs in these situations.