Physiology of Injury & Wound Healing Flashcards
1
Q
an incision made under ideal surgical conditions is what classification of wound?
A
Class 1 Wound
2
Q
a wound more than 4-6 hours old is considered…
A
contaminated
3
Q
open wound (simple) (2)
A
- integrity of skin is destroyed
- no loss/destruction of tissue
4
Q
open wound (clean) (2)
A
- edges can be approximated and secured
- expected to heal by first intention
5
Q
what do histamines do? (2)
A
- cause small blood vessels to dilate
- increases blood flow to area resulting in heat redness and swelling
6
Q
signs of inflammation (5)
A
- pain
- heat
- swelling
- redness
- loss of function
7
Q
3 types of wound healing determined by condition of the tissue
A
- Fist Intention (Primary Union)
- Second Intention (Granulation)
- Third Intention (Delayed Primary Closure)
8
Q
First Intention (Primary Union) (4)
A
- incision under ideal conditions
- healing occurs side to side
- wound edges approximated accurately
- proper suturing technique used
9
Q
First Intention (Phase 2)
A
- proliferation phase
- fibroblasts multiply, bridge wound edges
- fibroblasts secrete collagen into connective fibers
10
Q
intra-operative tissue handling
A
- length/duration incision
- dissection technique (sharp/blunt)
- duration of surgery
- amount of tissue handling
- hemostasis
- precise tissue approximation
- elimination of dead space
- secure wound closure
