What is a benefit of repositioning patients every two hours?

Repositioning patients every two hours primarily helps prevent contractures. Contractures are permanent tightening of the muscles, tendons, ligaments, or skin that can occur when a joint is held in one position for an extended period. By regularly changing a patient's position, the range of motion is maintained, and the risk of developing these tight areas is significantly reduced. This practice is especially important for individuals who may be immobile or have limited mobility, as it helps maintain functional abilities and promotes overall comfort.

In contrast, other options relate to different physiological effects, but they do not align directly with the primary benefits of regular repositioning. For instance, increasing bone density is more closely tied to weight-bearing activities rather than just repositioning. Decreasing metabolic rate is not a desired outcome of repositioning; in fact, movement can help maintain metabolic health. Promoting muscle atrophy would be contrary to the objectives of repositioning, as such practices are intended to prevent muscle deterioration by encouraging use and movement. Thus, regular repositioning directly addresses the risk of contractures, making it a crucial practice in patient care.