tissue integrity Flashcards
(82 cards)
tissue integrity
state of structurally intact and physiologically functioning epithelial tissues
(integument and mucous membranes)
epithelium
tissue that lines cavities and structure surfaces throughout the body
debridement
removal of dead, damaged or infected tissue
granulation
connective tissue that forms on the surface of a healing wound
turgor
elastic state of tissue
emollient
agents that soften skin or treat dry skin
6 categories of impaired tissue integrity
- trauma or injury
- loss of perfusion
- immunological reaction
- infections and infestations
- thermal or radiation injury
- lesions
4 steps of wound healing
- regeneration
- resolution
- repair
- healing
resolution
returning injured tissue to original structure and function
repair
replacement of destroyed tissue with scar tissue
scar tissue
composed primarily of collagen to restore the strength of tissue but not function
healing
filling in the wound
sealing wound
shrinking wound
epithelialization
sealing the wound
contraction
shrinking the wound
three types of wound healing processes
primary intention
secondary intention
tertiary intention
primary intention
margins well approximated
lacerations
surgical incisions
most rapid
secondary intention
margins not well approximated. larger areas require formation of granulation tissue to fill in gaps
longer time period
tertiary intention
healing delayed
occurs when wound was open and is now closed
associated with large infected contaminated wounds
three phases of wound healing
inflammatory
granulation (proliferative)
maturation (remodeling)
inflammatory phase
3-5 days
homeostasis develops
macrophages remove debris
granulation phase
5-21 days
new blood vessels and tissue formed
maturation phase
lasts months
collagen fiber remodelled
scar formation and contraction occur
predisposing disorders to dysfunctional wound healing
diabetes obesity wound infection inadequate nutrients numerous medications tobacco smoke
dysfunctional collagen synthesis results in
keloid scar
hypertrophic scar