Decubitus ulcers: preventive techniques for the elderly patient.

The at-risk older patient must immediately be placed on a supersoft support, with heels protected with sheepskin boots. If reddened skin is found the next morning, the patient must be turned to a 30 degrees-oblique position on alternate sides every 2 hours. Any condition that greatly decreases frequency of involuntary movement or lowers critical arteriolar closing pressure is a risk factor. Without intervention, the probability that immobile patients will develop decubitus ulcers is 100%.