Wisconsin Certified Nursing Assistant (CNA) Practice Exam

How often should an immobile resident be repositioned to avoid pressure ulcers?

1. Every hour

2. Every 2 hours

3. Every 3 hours

4. Every 4 hours

The correct answer is: Every 2 hours

Repositioning an immobile resident every two hours is a standard practice to prevent pressure ulcers, also known as bedsores. This interval is based on research and clinical guidelines which indicate that regular movement helps to distribute pressure across different areas of the body, thus reducing the risk of skin breakdown. By shifting the resident's position, you improve blood circulation and relieve pressure on bony prominences, where ulcers are most likely to develop. Maintaining this schedule ensures that no area of the skin is subjected to continuous pressure for too long, which can lead to ischemia and tissue necrosis if not addressed. While more frequent repositioning, like every hour, might further decrease the risk, it may not be feasible in all care settings or for all residents, depending on their health, comfort, and care needs. Conversely, longer intervals, such as three or four hours, are not considered sufficient for those at high risk, as the potential for pressure injuries increases with extended periods of immobility. Hence, the two-hour timeframe strikes a balance between effective care and the practical realities of caregiving.