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A 5-year-old girl is brought to the physician 30 minutes after being bitten on the forearm by her cat. Examination shows a small puncture wound covered with dried blood. She is at increased risk of infection for which of the following reasons?
A) Arm wounds are more susceptible to infection
B) Salivary enzymes in cats augment infection
C) It is difficult to cleanse pathogens from this wound
D) The Staphylococcus species involved is particularly virulent
E) Young children are less able to resist infection than adults
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the answ is A....i believe..there is a big article on NEJM about this...
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C, `coz, wound has already closed, due to clot.so the virus, cannot be cleaned.
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a, Bites of the hand generally have a high risk for infection because of the relatively poor blood supply of many structures in the hand and anatomic considerations that make adequate cleansing of the wound difficult. In general, the better the vascular supply and the easier the wound is to clean (ie, laceration vs puncture), the lower the risk of infection.
e medicine.
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Ans: C
cat bites become infected more frequently--about 30% to 50% of the time. This is because cat teeth are very sharp and thinthey tend to cause puncture wounds and can push bacteria deep into the flesh, even into bones and joints.
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With cat there are two possibilities: Pasturealla multicida and Bartonella Henselae-cat scratch ds (don't mind my spellings). Viruses have nothing to do with it. I think it is A.
