Final answer:
The best nursing intervention for preventing complications of immobility on bedrest is repositioning the patient every two hours and using special pressure relief devices.
Step-by-step explanation:
The best nursing intervention for preventing complications of immobility when caring for a client on bedrest is to reposition the patient at least every two hours. This helps to prevent pressure ulcers or bedsores, which can occur due to prolonged pressure on specific areas of the body.
In addition to repositioning, special pressure relief devices such as cushions or mattress overlays can be used to distribute the pressure and reduce the risk of skin breakdown.
Sitting with the patient to keep them company and encouraging nutrition are important aspects of care, but they are not specifically targeted at preventing complications of immobility.