Ch. 32 Wound Care: Vocab Flashcards
abscess
collection of infected fluid that has not drained
bandage
piece of gauze or other material used to cover a wound
biofilm
thick grouping of microorganisms
debridgement
cleaning away devitalized tissue and foreign matter from a wound
dehiscence
separation of the layers of a surgical wound, may be partial, superficial, or a complete disruption of the surgical wound
dermis
layer of skin below the epidermis.
contains: framework of elastic connective tissue, primarily of collagen. nerves, hair follicles, glands, immune cells, and blood vessels
desiccation
dehydration; the process of being rendered free from moisture
dressing
protective covering placed over a wound
epidermis
superficial layer of the skin
contains: stratified epithelial cells, forms a protective, waterproof layer of keratin.
epithelialization
stage of wound healing in which epithelial cells form across the surface of a wound; tissue color ranges fromthe color of ground glass to pink
erythema
redness of the skin
eschar
thick, leathery scab or dry crust that is necrotic and must be removed for adequate healing to occur
evisceration
protrustion of viscera through an incision
exudate
fluid that accumulates in a wound, may contain serum, cellular debris, bacteria, and WBCs
Fistula
an abnormal passage from an internal organ to the skin or from one internal organ to another
friction
occurs when 2 substances rub against each other, resulting injury resembles an abraision and can also damage superficial blood vessels directly under the skin
granulation tissue
new tissue that is pink/red in color and composed of fibroblasts and small blood vessels that fill an open wound when it starts to heal
hematoma
localized mass of usually clotted blood
ischemia
deficiency of blood in a particular area
maceration
softening through liquid, overhydration
necrosis
death of cells and tissue
negative pressure wound therapy (NPWT)
activity that promotes wound healing and wound closure through the application of uniform negative pressure on the wound bed, reduction in bacteria in the wound, and the removal of excess wound fluid
pressure injury
- localized damage to the skin and underlying tissue that usually occurs over a bony prominence or is related to the use of a (medical or other) device 2. any lesion caused by unrelieved pressure that results in damage to underlying tissue, formerly known as pressure ulcre
purulent drainage
compromised of WBCs, liquified dead tissue debris and both dead and live bacteria
sanguineous drainage
containing or mixed with blood
scar
connective tissue that fills a wound area
serosanguineous drainage
mixture of serum and RBCS
serous drainage
composed of clear, serous portion of the blood and from serous membranes
shear
force created when layers of tissue move on one another
subcutaneous tissue
underlying layer that anchors the skin layers to the underlying tissues of the body.
Contains: adipose tissue, lobules of fat cells and connective tissue. stores fat for energy, heat insulation, and a cushioning effect. contains blood and lymph vessels, nerves. and fat cells/
wound
injury that results in a disruption in the normal continuity of a body tissue
Incision
cutting or sharp instrument, wound edges in close approximation and aligned
contusion
blunt instrument, overlying skin remains intact, with injury to underlying soft tissue, possible resultant bruising and/or hematoma
abrasion
friction, rubbing or scraping epidermal layers of skin, top layers of skin abraded
laceration
tearing of skin and tissue with blunt or irregular instrument, tissue not aligned, often with loose flaps of skin and tissue
puncture
blunt or sharp instrument puncturing the skin, intentional (such as venipuncture) or accidental)
penetrating
foreign object entering the skin or mucous membrane and lodging in underlying tissue, fragments possibly scattering throughout tissues
avulsion
tearing a structure from normal anatomic position, possible damage to blood vessels, nerves, and other structures
chemical
toxic agents such as drugs, acids, alcohols, metals, and substances released from cellular necrosis
thermal
high or low temps. cellular necrosis as a possible result
irradiation
ultraviolet light or radiation exposure
pressure ulcers
compromised circulation secondary to pressure or pressure combined with friction
venous ulcers
injury and poor venous return, resulting form underlying conditions, such as incompetent valves or obstruction
arterial ulcers
injury and underlying ischemia, resulting from underlying conditions such as atherosclerosis or thrombosis
diabetic ulcers
injury and underlying diabetic neuropathy, PAD, diabeter foot structure
