Are pressure ulcers serious? They can be serious,depending on how much the skin and tissues have been damaged. Mild damage only causes the skin to be discolored and feel warmer than the surrounding skin. Deep ulcer go down into the muscle,or even to the bone (osteomyelitis(骨髓炎)，even death)
Are pressure ulcers serious? They can be serious, depending on how much the skin and tissues have been damaged. ❖ Mild damage only causes the skin to be discolored and feel warmer than the surrounding skin. ❖ Deep ulcer go down into the muscle, or even to the bone (osteomyelitis（骨髓炎）, even death)
How pressure ulcer are caused ÷1.Pressure(压力) Ex.sitting or lying in one position for too long ÷2.Friction(摩擦力) Ex.sliding up and down the bed ?3.Shearing(剪切力) Ex.patient's skin sticks to the sheets on the bed but his/her body slides down the bed
How pressure ulcer are caused ❖ 1.Pressure（压力） Ex. sitting or lying in one position for too long ❖ 2.Friction（摩擦力） Ex. sliding up and down the bed ❖ 3.Shearing（剪切力） Ex. patient’s skin sticks to the sheets on the bed but his/her body slides down the bed
剪切力的 作用范围 摩擦力 图2压力、剪切力和摩擦力作用于机体致PU示意图 [引自：Gebhardt K.Nursing Times,2002;98(11):42]
Where the pressure ulcer are most likely to develop pressure ulcer are most likely to develop on the body where the bone is close to the skin surface
Where the pressure ulcer are most likely to develop ❖ pressure ulcer are most likely to develop on the body where the bone is close to the skin surface
pressure ulcer are most likely to develop on the parts of body that take the weight
❖ pressure ulcer are most likely to develop on the parts of body that take the weight