wound care Flashcards
abrasions
scraping away of the outer layer of epidermis: mild road rash
lacerations
skin is sliced open (cut on wire, piece of metal)
surgical incisions
scalpel
puncture wounds
sticks, wire, nail, tree branch
penetrating wounds
these connect to a body
cavity (example: thorax)
avulsion injuries
Tearing of tissue from its
attachments. HBC
contusions
bruises; stays in body (closed wound)
crushing injuries
doesn’t expose body’s inner tissue to outside world (closed wound)
clean
Surgically created under aseptic conditions. Minimal trauma. These wounds are sutured
clean contaminated
- Surgical wound with minor break in sterile technique.
- Surgery in which the intestinal, urinary or respiratory tracts
are entered
contaminated
- Open traumatic wound or a surgical wound with a major break in sterile technique
- Colon surgery
- Needs aggressive cleansing and treatment.
- Dogfight wounds, gunshot wounds, degloving injuries
infected
- Old traumatic wound or high bacterial count ( > 105 /gram tissue)
- Perforated viscera. Purulent discharge.
- Intensive treatment
how to treat small animal wounds
- stablize patient
- remove debris
- debride
- manage wound drainage
- protect wound through healing
- clip around wound
- cleanse around wound
- lavage
- pain management and closure
3 stages of wound healing
- Inflammatory phase
- Proliferative phase
- Remodeling phase(maturation phase)
inflammatory phase
(immediate, lasts 3-5 days)
- Blood is released, platelets aggregate, fibrin clot forms (hemostasis)
- Growth factors released - Macrophages & neutrophils are recruited
- Remove bacteria & cellular debris
- Erythema, swelling, heat and pain develop
proliferative phase
(starts at 2-3 days; lasts several weeks)
- Granulation, Contraction & Epithelialization occurs
- Fibroblasts migrate to wound
- More growth factors releases, stimulate proliferation & recruitment of these cells
- Extracellular matrix is produced