Wound Care 2 Flashcards
Acute Wounds
induced by surgery or trauma
progress in predictable time and manner
Chronic Wounds
Fail to progress through phases of healing
healing is prolonged
Is it possible to accelerate normal healing?
No.
But it is possible to improve delayed healing by addressing factors complicating wound repair.
What areas heal more slowly?
areas w/decreased vascularity
wounds over bony prominences
areas w/decreased # of epidermal appendages
areas where skin is thicker
Which heals faster- larger or smaller wounds?
smaller wounds heal faster
Circle, Square and linear wounds- which is slowest to heal?
circle is slowest
linear is fastest
What is a good temp for wounds to heal?
98.6-100.4 F
This is because vasculature dilates, tissues are less vulnerable to infection, and oxygen levels are increased.
At what temp will healing slow down?
68 F
At 53.6 F what happens to tissue strength?
strength decreases and it becomes breakable
Dry Wounds go through phases of inflammation more slowly why?
epithelial cell migration is slowed
if covered with 0.2-0.3mm thick crust on top it dries more slowly.
wound will be inflamed and painful
Covered wounds trap wound fluids which…
stimulates collagen synthesis
induces angiogenesis
enhances wound contraction
Too much moisture can delay wound healing how?
periwound becomes macerated
macerated skin is more fragile and friable
Problems that may occur due to necrotic tissue
epithelial cells can only migrate over viable tissue
necrotic tissue provides food for microbes/promotes infection.
foreign bodies contribute to infection and perpetuate inflammatory response
What implies infection?
colonization (presence of microbes) does not imply infection..when the amount reaches high enough level THEN healing will be impaired because they compete with body cells for O2 and energy & secrete cytotoxic cells
What number of microbes implies infection?
greater than 10 to the 5th per gram of tissue.
What does infection do to the healing process?
prolongs inflammation, contributes to wound dehiscence, increases scarring, slows wound healing.