For a client in Buck's traction, which nursing intervention promotes mobility?

The correct choice focuses on active range of motion, which is essential for promoting mobility in clients under Buck's traction. In this state, maintaining joint and muscle health is vital, as immobilization can lead to stiffness and loss of function over time. Active range of motion exercises encourage muscle activation and blood circulation, which help mitigate some complications associated with prolonged bed rest and traction.

Engaging the left leg actively allows the client to participate in their rehabilitation process, promotes muscle strength, and fosters overall mobility despite the limitations imposed by the traction device. This method also enhances the client's sense of independence and well-being.

While encouraging bed rest and immobilization may initially appear necessary due to the traction, it can negatively impact mobility by leading to disuse atrophy and joint stiffness. Passive range of motion can be beneficial as well, but it doesn’t provide the same level of engagement and benefit that active participation offers for mobility improvement. Using a wheelchair for movement can support mobility outside of bed, but it does not directly contribute to strengthening or preserving the function of the limb itself, which is critical in this scenario.