Minor Surgery lll Flashcards
Disinfect intact skin with ?
10% betadine x 3 or , 0.4 % chlorhexidine
On an open wound don’t use _____. Irrigate with what instead
hydrogen peroxide
0.9% saline soln
Don’t suture older wounds older than ______ (this is outdated)
8-12 hrs/ 24 on face
Hemostasis is formation of a ____clot
fibrin
Inflammation begins days ___
steps
1-4
- plts
- neutro
- m)
- re-epithelization
- new kertonicytes
inflammation
n0 come in at ____ and last for how long
5-6 hrs
3-4 d to destroy bacteria
inflammation
re-epilthelization involves what type of cells that migrate within how long to repair the wound?
basal cell
24-48 hrs
new keratinocytes proliferate how long after injury
1-2 d
Healing Stages
- hemostasis
- inflam
- prolifer (granulation 3-21d, new capillaries surrounded by fibroblasts form grantulation tissue - ANGIOGENESIS
- remodeling - 3 wks to 6-18 mo
remodeling lasts how long
% strength by 3-4 wks
% strength at 1 yr
3 wks to 6-18 mo
30-40% strength by 3-4 wks
80% strength at 1 yr
Absorbable natural sutures
which has more reactivity
plain catgut - 7-10 d half life, some tissue reactivity
chromic catgut - chromic salt delays absorption, 2-3wk 1/2 life. LESS REACTIVE
Absorbable Synthetic sutures
braided type?
half lives
polyglactic/vicryl - braided and monofilment; 2-3 half life
polyglycolic acid/Dexon - mono, 2-3 wk
Polydioxanone/PDS - mono, 4-6 week
Absorbable levels of reactivity
plain catgut > chromic > synthetic
Non-absorbable suture materials for:
Natural
Synthetic
superficial tissues
Natural: silk, stainless steel, polyester/polybutester
Synthetic: nylon/ethilon, polypropylene/prolene
Absorbable suture materials are for?
digested by?
deep tissue layers
natural - body enzymes
synthetic - hydrolyzed, easy to tie