Definitions
cicatrix
normal scar formation
dehiscence
separation of wounds
dead space
separation of wound layers that have not been closely approximated
Describe the difference between incisional and excisional wounds.
incision is an intentional cut through intact tissues for the purpose of exposing or excising underlying structures.
excision is simply the removal of tissue
Describe a class III (contaminated) surgical wound.
open wounds less than 4 hours old in duration
debridement
removal of damaged tissue and other foreign material wound to promote healing
evisceration
extrusion of internal organs or viscera through gaping wounds
aerodigestive tract
combined organs and tissues of the respiratory tract and the upper part of the digestive tract
Describe a class I (clean) surgical wound
when an incision is made under ideal surgical conditions
What is the infection rate for a class III wound?
15-20%
contusion
tissue injury or bruise; bleeding into tissues
adhesion
abnormal attachment of 2 surfaces
laceration
cut or tear
What is the infection rate for a class I wound?
1-5%
Describe a dirty/infected (class IV) surgical wound.
old, traumatic wound of more than 4 hours from a dirty source or with retained necrotic tissue, foreign body, or fecal material.
abrasion
scrape
devitalized
tissue that is not viable; necrotic
apposition
2 structures close together; contact
Describe a clean contaminated (class II) surgical wound
no sign of an infection and no break in surgical aseptic technique
What is the infection rate for a class IV surgical wound?
27-40%
friable
tissue that is fragile and bleeds easily
Keloid
abnormal healing causes overgrowth of collagen and mass of fibrous tissue
Chronic
condition with insidious or slow onset, mild but continuous manifestations, and long-lasting, often progressive, effects.
What is the infection rate for class II wounds
8-11%
A wound is considered ______ if more than 4 hours old.
contaminated