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type of wounds, wound healing, wound drainage
Terms in this set (32)
short duration, in healthy person heal spontaneously with complication through 3 phases of healing.
exceed the expected length of recovery, include pressure, arterial, venous, and diabetic ulcers.
uninfected wound with minimal inflammation/ little risk for infection
Clean contaminated wounds?
surgical incisions that enter the gastrointestinal, respiratory, or genitourinary tracts/ increased risk of infection.
include open traumatic wounds or surgical incisions in which a major break in asepsis occurred
plasma and blood lead into injured area causing this liquid which accumulates and leads to swelling and pain.
Superficial wound ?
involves only the epidermal layer of the skin, injury is usually friction, shearing or burning.
Full thickness wounds?
extend into the subcutaneous tissue and beyond.
wound involves internal organs.
Types of healing? (page 903)
-Primary Intention healing
-Secondary intention healing
-tertiary intention healing
Regenerative/ Epithelial healing?
wound affects on the epidermis and dermis this type of healing takes place, no scar forms and new regenerated epithelial and dermal cells from new skin
Primary intention healing?
wound involves minimal or no tissue loss and has edges that are well approximated (closed), little scarring takes place.
Secondary intention healing?
-a wound that involves extensive tissue loss( which prevents wound edges from approximating)
-should not be closed, be left open it heals from the inner layer to the surface.
-heals more slowly, are more prone to infection, develop more scar tissue.
-example pressure ulcers
form of connective tissue with an abundant blood supply / new tissue that forms the foundation for scar
Tertiary intention healing?
-aka (delayed primary closure) when two surfaces of granulation tissue are brought together.
-creates less scarring than does secondary.
Phases of healing?
Inflammatory, proliferative, Maturation
Hemostasis? ( part of Inflammatory phase)
severed vessels constrict, platelet and fibrin clots form, contraction of clot.
Inflammation? (part of Inflammatory phase)
release of bradykini, histamine, serotonin, prostaglandins, vasodialation and incresed permeability of capillaries, migration of WBCs.
fibroblasts enter wound, collagen synthesis, new blood and lymph vessels form, epithelial proliferation and migration.
collagen fibers remodeled, tensile strength increases, contraction (shrinkage) of wound.
would most like happen in infammatory phase of healing, it is the separation of one or more layers of a wound, poor nutritonal status,, patients usually feel a pop/ Nurse would cover wound with sterile gauze and call physician.
total separation of layers of the wound with internal viscera protruding through the incision/ cover wound with sterile gauze, then call doctor for repair.
abnormal passage connecting two body cavities or a cavity and the skin, result from infection or debris left in the wound.
What are the 5 types of wound drainage?
watery, contains very little cellular matter, consists of serum: straw colored fluid that seperates out of blood.
seen with deep wounds, bloody drainage, indicates damage to capillaries, fresh bleeding produces bright red drainage.
new wounds, you will most commonly see a combination of bloody and serous drainage.
think often malodorous, seen in infected wounds, contains pus, commonly causes by infection.
red tinged pus it indicates that small vessels in wound has ruptured.
Heat and cold?
-Extremes of Age:very young, very old are least tolerate of heat and cold therapies.
-Sensory Impairment: increased risk for injury they may not perceive temp changes.
-high vascular areas: fingers, hand, face, perineum very sensitive
-application to a large area: decreases the patients tolerance of treatment.
-injured skin or wounds: intact skin tolerates heat and cold therapy better than skin that been injured or has open wounds.
heat increases blood flow to an area through vasodilatiation, increased blood flow brings oxygen and WBC to area, promotes delivery of nutrients and removal of waste, relaxes, decreases stiffness, muscle tension.
vasoconstriction and decreases capillary permeability, used to prevent edema, reduce inflammation, pain, oxygen, bleeding, treat fevers, sport injuries.
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