Wound Management Flashcards
What is an open wound?
An injury that causes a break in the skin
May take weeks/ months to heal
What is a closed wound?
Injury does not cause break in skin , damage to underlying tissues
What is a clean wound?
A surgical wound, no break in sterility
What is a clean-contaminated wound?
Surgical wounds of respiratory, urogenital or gastrointestinal systems where full sterility cannot fully be achieved
What is a contaminated wound?
Wound which have been contaminated but fresh
What is a dirty wound?
Active infection present, a wound more than 6 hours old
What is first intention healing?
Occurs in clean surgical wounds which are sutured.
It occurs over a period of 14 days
What is second intention healing?
This happens when the wound edges are unable to be sutured together because of tissue loss.
What are the 3 phases of wound heaing?
- Inflammatory
- Proliferative
- Remodelling
What is the inflammatory phase?
Triggered by activication of platelets and fibrin in blood clot.
Neutrophils are attracted to damaged tissues which clear up bacteria and necrtoic tissue
What is Proliferative phase?
Granulation - Bright red and firm, but easily damage. serves as a barrier. Fibroclasts lay down a bed of collagen
Contraction- Wound edges pull together – up to 30% of the wound can close during this phase.
Epithelialisation- Epithelial cells proliferate and migrate – reattach to granulation tissue.
What is the remodeling phase?
- Scar formation will occur
- can take 3 weeks to 2 years
- New coolagen froms and increases stength of wound but tissue can only achieve 80% of orginnal stength
Reasons for delayed healing
- Infection
- Stress
- Licking
- Tension on wound edges
- Nutrition
What is debridement?
Removes all devitalised, contaminated or infected tissue & speeds up healing
Primary layer of dressing
In contact with wound, absorbent
Seconfary layer
- Used to hold the primary layer in place
- Provides padding
Tertiary Bandage Layer
- Protects the other layers of the bandage from soiling and mutilation
- usually cohesive/adhesive