IV catheter + surgical site infections

Question 1

IV catheter infection risks

Answer 1

cannula in lower limb
cont infusion >24hrs
in situ >72hrs
pt w neurosurgical/neurological problems

Question 2

IV catheter infection features

Answer 2

s. aureus ; mssa, mrsa
commonly forms biofilm which spills into bloodstream

seed to other places: endocarditis, osteomyelitis

Question 3

IV catheter Rx

Answer 3

remove cannula
express any pus from thrombophlebitis
antib 14days
echo

Question 4

IV catheter infection prevention

Answer 4

dont leave in unused catheter
change catherter every 72hrs
aseptic technique
monitor for thrombophelbitis

Question 5

surgical wound I

Answer 5

clean wound

major tracts not entered (resp, GI etc)

Question 6

surgical wound II

Answer 6

clean contaminated

tracts entered but no unusual contaminatin

Question 7

surgical wound III

Answer 7

contaminated wound

open, fresh, accidental, gross spillage from GIT

Question 8

surgical wound IV

Answer 8

infected

pre-exisintg infection

Question 9

surgical wound infection organisms

Answer 9

s. aureus 
strep 
enterobacter
e.coli 
psudomonas
coag neg staph
fungi 
anaerobes

Question 10

surgical wound infection patient assoc risks

Answer 10

diabetes
smoking 
obesity 
malnutrition 
steroid
colonisation w staph

Question 11

surgical wound infection procedural risk factors

Answer 11

shaving site night before
improper pre-op skin prep
break in sterile technique
improper antib prophylaxis
peri-op hypoxia