T3 - Chapter 36 Skin Integrity & Wound Healing Flashcards
epidermis
outer portion of the skin and is made up of 4 or 5 layers
stratum germinativum
innermost layer of epidermis and continually produces new cells
infants and children
- skin is thinner and more permeable
- more prone to skin breakdown
adolescents and adults
-sex hormones release during puberty and increase sweat gland activity
older adults
- drier skin
- xerosis
- wound healing takes longer
why is protein essential?
helps maintain healthy skin
why is cholesterol essential?
- helps prevent skin breakdown
- low cholesterol makes skin prone to breakdown
what happens if caloric intake is inadequate?
- body uses protein for energy and then its unavailable for building and maintenance
- weight loss, loss of subcutaneous tissue, and muscle atrophy
what vitamins and minerals are involved in formation of collagen?
- ascorbic acid
- zinc
- copper
- vitamin C
macetration
excessive exposure to moisture that leads to skin breakdown
excoriation
when superficial skin layers get scrapped off often through digestive enzymes
contamination of wound
there are microorganisms in the wound
colonization of wound
bacteria increase in number but dont cause harm
critical colonization
bacteria begin to overwhelm the bodies defenses
infection
bacteria are causing harm by releasing toxins or invading body tissues
closed wound
no breaks in the skin
ex: bruises or tissue swelling
open wound
when there is a break in the skin or mucous membranes
actue wound
heal spontaneous without complications through the 3 phases of wound healing
chronic wound
exceed expected recovery time because the natural healing process has been interrupted
clean wound
uninfected with minimal inflammation
limited risk for infection
clean-contaminated wound
surgical incisions that enter GI, respiratory, or genitourinary tracts
increased risk of infection
contaminated wounds
open/traumatic/surgical with a break in asepsis
high risk of infection
infected wounds
bacteria is above 100,000 organisms per gram of tissue
s/s: swelling, fever, foul oder, drainage, warmth to surrounding tissue
abrasion
scrape in superficial layers of skin
abscess
- localized collection of pus resulting from invasion of pathogen
- must be opened and drained in order to heal
contusion
closed wound caused by blunt trauma
crushing
- caused by force leading to compression or disruption of tissue
- usually no break in the skin
incision
open, intentional wound caused by a sharp instrument
laceration
- skin or mucous membrane are torn open
- wound often has jagged margins