jberens at medmicro.uct.ac.za
Tue Nov 21 09:56:45 EST 1995
dasnyder at uci.edu (David Snyder) wrote:
>In article <48dsfh$i9 at news.bu.edu>, cplclegg at bu.edu (Bruce S. Powell) wrote:
>> Quick question: from an eye wound exudate, is it normal to isolate S. aureus
>> and\or E.coli? Does this indicate pathogenesis?
>S. aureus is found on the skin of many people and hence may be there
>without pathenogenisis although it is an indication of eye rubbing (which
>may not be helped if it occurs durring sleep). E. coli may be there for a
>similar reason, however, there is the risk that those organisms will
>infect the wound. Hence the wound should at least be watched and possibly
>lightly covered to prevent further rubbing... Of course an actual
>physician or medical microbiologist may have more to say than I, a
>> from urine sample: Klebsiella? (I know this is an opportunist.)
>I do not know if it would be alone and transiently a sign of infection,
>but I have heard of Klebsiella infections of the bladder.
>Hope I am more helpful than not,
Treat the patient, not the culture. If the eye wound shows signs of sepsis, and
you're growing S. aureus and E. coli from a swab, therapy will have to cover them,
even if one or both are just colonisers. Staph aureus can commonly cause eye
Similarly with urine cultures. If there are features of a urinary tract infection
and a decent urine specimen is received (with minimal urethral and external
contamination) and you grow a large amount of Klebs (pneumoniae, probably) then it
MAY be a pathogen; certainly treatment could then reasonably cover that isolate.
And yes, Klebs commonly cause urinary tract infections, but is faecal flora and so
could be present on the skin periurethrally.
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