Question

please provide rationale for this etiology:

Presurre ulcer is localized injury to skin and or underlying tissue, usually over bony prominence. Pressure ulcer fenerally falls under category healing bu secondary intention. The pressure compresses small blodd vessel and lead to i effective tissue perfusion

Answer 1

Ans) Rationale for this is that causes 3 factors:

- Three primary contributing factors for pressure ulcers are:

• Pressure: Constant pressure on any part of your body can lessen the blood flow to tissues. Blood flow is essential to delivering oxygen and other nutrients to tissues. Without these essential nutrients, skin and nearby tissues are damaged and might eventually die.

For people with limited mobility, this kind of pressure tends to happen in areas that aren't well-padded with muscle or fat and that lie over a bone, such as the spine, tailbone, shoulder blades, hips, heels and elbows.

• Friction: Friction occurs when the skin rubs against clothing or bedding. It can make fragile skin more vulnerable to injury, especially if the skin is also moist.
• Shear: Shear occurs when two surfaces move in the opposite direction. For example, when a bed is elevated at the head, you can slide down in bed. As the tailbone moves down, the skin over the bone might stay in place — essentially pulling in the opposite direction.