Tissue Integrity Test 6 Practice

Pressure ulcers form where soft tissue is squeezed between a bone and a surface for a sustained time, and the location depends on body position. When a person sits, the weight is transmitted to the ischial tuberosities—the bony prominences just below the buttocks. These areas are immediately distal to the buttock and are the common sites for ulcers in seated individuals because the tissue there is pressed against the chair. The sole is far away from the buttocks, the sacrum is more typical of ulcers from lying on the back, and the scapula sits on the upper back/shoulder region, not just below the buttocks. So the ischium is the correct site.