Which body part should be checked frequently for pressure sores in bedridden patients?

In bedridden patients, pressure sores, also known as pressure ulcers or bedsores, are most commonly found in areas where bony prominences are located and where there is prolonged pressure. The back, buttocks, and heels are key areas at risk because these parts of the body are subjected to pressure when a patient is lying down for extended periods.

The back is vulnerable due to contact with the surface of the bed, and the buttocks are particularly prone to sores since they bear much of the weight when lying supine. Heels are at risk due to pressure from the bed while the patient is in a reclined position. Regularly checking these areas allows for early detection and intervention, which is crucial in preventing the development of severe pressure sores that can lead to serious complications.

Other body parts listed in the choices, such as the arms, legs, neck, face, chest, and abdomen, although they might also experience pressure, do not typically present the same high risk for pressure ulcers as the back, buttocks, and heels do in bedridden patients.