Final answer:
In a supine position, vulnerable bony prominences susceptible to bedsores include the heels, sacrum, and elbows. These sores result from prolonged pressure that impedes blood flow and leads to tissue necrosis.
Step-by-step explanation:
Vulnerable bony prominences due to rubbing and sustained pressure in a supine position often result in the development of bedsores, also known as decubitus ulcers.
When a patient lies supine, which is a face-up orientation, the areas at greatest risk include the heels, sacrum, elbows, and the back of the head.
Bedsores are caused by persistent, unrelieved pressure that diminishes blood flow, leading to tissue necrosis.
Preventative measures in healthcare settings often involve repositioning patients every few hours to alleviate pressure and improve circulation. If untreated, bedsores can lead to serious infections and complications.