NSE 22A/B Lecture Notes - Lecture 6: Gangrene, Pain Management, Cell Migration
2 Nov 2017
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Nse 22 nursing practice ii: acute and chronic care. Wound care (part 2: discuss stages of pressure ulcers development; Pressure ulcer: impaired skin integrity related to untreated and prolonged pressure. Causes of pressure ulcers: prolonged pressure (bedrest, immobility, wheelchair bound, diabetes d/t peripheral neuropathy) Lost of circulation to tissue (schemia: tissue destruction (necrosis, eschar) Infection: friction, shear, moisture, pain, alterations in loc, tissue perfusion, age, medical conditions. Pressure intensity: pressure applied over capillary exceeds normal capillary pressure and vessel is occluded for a long period of time. Characteristic of skin breakdown for dark skin: purplish/bluish colour skin appears darker than surrounding area, warm compared to surrounding, edema shiny, indurated, taut, soft/boggy, scaly. Low intensity pressure over prolonged period of time cause tissue damage blood occluded. Purple or maroon localized area of discoloured intact skin or blood-filled blister due to damage of underlying soft tissue from pressure and/or shear.
