Q)In preop evaluation before placing skin graft over wounded area…bacterial colony count must be less than
a) 10000
b) 100000
c) 1000000
d) 10000000
ans b) 10 raise to the power 5
Prerequisites for skin grafting:
The recipient site should be assessed for potential bacterial load, blood supply,
presence of devitalized tissue, and exposed vital structures.
Donor site availability
Perform recipient site tissue culture if history or concern for infection (counts <105
CFU/g tissue for most pathogens required before grafting).
Presence of group a beta heamolytic streptococci is absolute contraindication for
skin grafting
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