changes in skin on older adults - Answers less collagen, elasticity, thinning, weakened attachment of
both epidermis and dermis
shearing forces
decreased inflammatory response
slow healing
reduced nutritional intake
how does health status affect wound healing? - Answers corticosteroid drugs, poor immune system, and
postopertive radiation therapy delay healing
dessication, maceration, pressure, trauma, edema, infection, necrosis
dessication - Answers drying out of skin
maceration - Answers staying too wet or moist
phases of wound healing - Answers hemostasis - vessels constrict, clot forms, vessels dilate, leak ->
exudate
inflammatory - 4-6 days
proliferative (grow, rebuild) - several weeks
remodeling/maturation - begin about three weeks after injury
stages of forming new blood vessels - Answers filling
contracting
resurfacing
remodeling stage of wound healing - Answers 3 weeks after injury
collagen is remodeled
new collagen tissue is deposited
, scare becomes a flat, thin, white line
acute wound classification - Answers proceeds through timely and orderly reparative process that
results in sustained restoration of anatomical and functional integrity
causes: trauma, surgical incision
usually easily cleaned and repaired, edges are clean and intact
chronic wound classification - Answers fails to proceed through an orderly and timely process to
produce anatomical and functionals integrity
causes: vascular compromise, chronic inflammation, repetitive insults to tissue
continued expose to insult delays wound healing
healing process (intentions) - Answers primary intention - wound is closed
secondary intention - wound edges not approximated (wound left open to heal from the ground up)
tertiary intention - wound left open several days, then wound edges are approximated (contaminated)
how does a secondary wound heal? - Answers by granulation tissue formation, wound contraction and
epithelization
principles of wound healing - Answers adequate blood support
free of foreign material
extent of damage on health
proper nutrition maintained
partial thickness wounds - Answers shallow
involve loss of epidermis and possibly part of dermis
(epithelialization)