dermal-epidermal junction - ✔✔separates dermis and epidermis
names for pressure ulcers - ✔✔pressure sore, decubitus ulcer, or bed
sore
tissue ischemia - ✔✔death of skin bc lack of blood flow
blanching - ✔✔skin goes pale when pressed then goes back to pink
when released (think nails)
risk factors for pressure ulcer development - ✔✔Impaired sensory
perception
Impaired mobility
Alteration in LOC
Shear
, Friction
Moisture
friction - ✔✔*superficial / visible injury*
= the mechanical force exerted when skin is dragged across a coarse
surface (such as bed linens)
shear - ✔✔*internal injury*
= affected by the amount of pressure exerted, the coefficient of friction
between the materials contacting each other, and the extent to which the
body makes contact with the support surface
classification of pressure ulcers - ✔✔Stage I
Stage II
Stage III
StageIV
Unstageable
stage I pressure ulcer - ✔✔intact skin with nonblanchable redness
stage II pressure ulcer - ✔✔*partial thickness skin loss* involving
epidermis, dermis, or both (can be a scab, bloody, or blister)
stage III pressure ulcer - ✔✔full thickness tissue loss with *visible fat*
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