Tissue Integrity--Wound Key Terms Flashcards
abcess
a painful collection of pus usually caused by a bacterial infection
biofilm
the microorganisms that grow on the surface of a wound
debridement
removal of dead, damaged, or infected tissue
dehiscence
when previously closed wound edges rupture
dermis
makes up the largest portion of the skin, middle layer of connective tissue between epidermis and subcutaneous tissue
desiccation
to remove moisture from something that normally contains moisture
dressing
used to protect and heal wounds, there are many different kinds
epidermis
outer layer of skin, stratified epithelial cells made up of mainly keratinocytes
epithelialization
epithelial cells at wound edges proliferate to form a new surface layer that is similar to that which was destroyed by the injury
erythema
redness of the skin caused by dilation of capillaries, sign of inflammation
eschar
devitalized tissue resulting from a burn or wound
evisceration
when internal tissues and organs extrude from an open wound
exudate
fluid and leukocytes that move to the site of injury from the circulatory system in response to local inflammation
fistula
an abnormal connection between 2 different areas of tissue or organs
friction
the force of rubbing two surfaces against each other, often caused by pulling a patient over a bed sheet or a poorly fitted prosthetic
granulation tissue
connective tissue that forms on the surface of a healing wound
hematoma
tumorlike mass of blood trapped under the skin
ischemia
caused by unrelieved pressure, the cutaneous tissue becomes broken or destroyed leading to progressive destruction and necrosis of underlying soft tissue and the resulting pressure injury is painful and slow to heal
maceration
softening of the skin caused by moisture
necrosis
death of body tissue
Negative Pressure Wound Therapy (NPWT)
used to heal complex wounds
pressure injury
a localized area of necrotic soft tissue that occurs when pressure applied to the skin is greater than the normal capillary closure pressure over a period of time sufficient to cause tissue injury
purulent drainage
pus, suggests infection
sanguineous drainage
bloody drainage
serosanguineous drainage
bloody/fluidy drainage
shear
the result of exerting a parallel force on the patient’s body such as the resistance between the patient and the chair or bed when the patient slides down
slough
soft, moist avascular tissue, may be white, yellow, tan, gray, or green and may be loose or firmly adherent
subcutaneous tissue
- innermost layer of skin
- primarily adipose and connective tissue
- provides a cushion between skin layers and muscles and bones
wound
a break in the skin or other body tissues caused by injury or surgical incision
