Final answer:
A bed cradle is used in a care plan to hold linens away from the body, preventing pressure on the legs and feet and thus helping to reduce the risk of developing bedsores.
Step-by-step explanation:
When the CNA reads in the care plan that the resident has a bed cradle, it is understood that this is a device placed on the bed to hold the linens away from the resident's body. This is done to prevent pressure on the legs and feet, which can help reduce the risk of bedsores or pressure ulcers. These ulcers occur due to prolonged pressure on bony prominences, reducing blood flow to the area and potentially leading to tissue necrosis. A bed cradle prevents direct contact between the bed linens and the patient's skin, thereby minimizing friction and pressure. In this context, the correct answer is that 'the linens are placed on top of the cradle of the cradle to prevent pressure on the legs and feet'.