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Skin Integrity 102
LU Kozier Notes
Question | Answer |
---|---|
clean wounds | surgical wounds but no gut, genital, respiratory areas |
clean contaminated wounds | surgical in GI, Resp, Genital region |
contaminated wounds | accident wounds, burst appendix etc... |
dirty or infected wounds | obvious infection or necrotic tissue |
incision | sharp instrument (open wound) |
contusion | bruise, blow from blunt object, closed wound |
abrasion | scrape, open wound involving the skin |
puncture | penetration of skin and often underlying tissue, open wound |
laceration | tissues torn apart, open wound edges often jagged |
penetrating wound | penetration of skin and underlying tissue (bullet, metal fragment), open wound |
partial thickness | confined to skin (dermis and epidermis) heal by regeneration |
full thickness | involving the dermis, epidermis, subcu tissue, and could be muscle, bone and connective tissue |
pressure ulcers | lesion caused by unrelieved pressure |
ischemia | deficiency of blood supply to tissue, (localized pressure causes this and leads to pressure sores) |
Risk Factors for Pressure Ulcers | friction and shearing (usually together), immobility, inadequate nutrition, incontinence, decreased mental status, body heat, age, medical problems, and other issues |
friction | force acting parellel to the skin surface |
shearing force | combination of friction and pressure (patient in fowlers position) |
maceration | tissue softened by prolonged wetting and soaking |
excoriation | loss of superficial layer of skin |
Staging Pressure sores | Four stages, once pressure sore is staged it stays that stage even after improvement, cannot be staged till necrotic tissue removed |
Braden scale | pressure sore risk scale. 23 highest possible score, 17 and below are at risk for sores |
Stage 1 pressure sore | redness (non blanching) of epidermis and dermis |
stage 2 | skin loss |
stage 3 | full thickness to muscle |
stage 4 | full thickness with damage through muscle, possibly to bone and connective tissue |
primary intention healing | stitching, glue, stapels etc used. Tissue is approximated (closed) and there is minimal tissue loss |
secondary intention healing | bottom up healing, edges cannot or should not be approximated. Heals from the inside out, takes longer to heal, scarring is more, risk for infection is higher |
tertiary healing | wounds left open for 3-5 days, then approximated and closed |
dehiscence | partial or total rupturing of sutures |
evisceration | protrusion of internal viscera (organs) through an incision that has ruptured |
Assessment of wound | control bleeding, prevent infection (clean or flush), dressing (attempt to approximate edges when wrapping), control swelling (ice), |
assessment of pressure ulcer | location, size, and depth, presence of undermining, stage (if possible), color of wound bed and location of eschar and necrosis, condition of margins, integrity of near skin, signs of infection |
obtaining a wound culture | assess wound, sterile technique, cleanse the wound (irrigation), swab from one side to the other while spinning, do not swab up pus |
ace wraps | to return blood to heart, distal to proximal |
irrigation | usually use NS, 20, 30 or 60 gauge syringe |
heat | vasodilation, capillary permeability increase, cellular metabolism increase, inflammation increase, sedative |
cold | vasoconstriction, decrease cap refill, decrease cell metab, slow bacterial growth, decrease inflam., local anesthetic |