OPM - Pressure Sores

Question 1

how do pressure sores occur

Answer 1

Pressure in excess of the arteriolar pressure
(32 mmHg) prevents delivery of oxygen and
nutrients to tissues, resulting in tissue
hypoxia, accumulation of metabolic waste
products, and free radical generation

Question 2

what 2 forces can make a pressure ulcer

Answer 2

friction and shear

Question 3

what are some extrinsic risk factors for pressure sore formation

Answer 3

friction/shear
posture
moisture
heat
impact/injury
specific pressure on a single area

Question 4

what are some intrinsic risk factors for a pressure sore to form

Answer 4

poor nutrition
high BMI
disease
frailty
sensory loss
immobility
infection
incontinence

Question 5

what are the 4 stages in pressure sore formation

Answer 5

1. skin inflamed
2. skin broken
3. ulcer to fat
4. ulcer to muscle/bone