vogon77
Forum Senior
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most common cause of UTI in young women,
e coli
or S. saphrophyticus
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| Ahab
Forum Elite
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e. coli
then staph saprophyticus
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| mjl1717
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If shes newly sexually active and the q might say that and "nitrite negative" you could think of staph saprophyticus.
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| bactitech
Forum Elite
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We see TONS more E. coli in urine cultures than S. sapro. Just from my years of reading urine culture plates, I would definitely say E. coli.
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Clinical Microbiology since 1974
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| mani
Forum Guru
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yes, E coli is most common
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| Malaysian
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How about in males?
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| bactitech
Forum Elite
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UTI's in males are a lot less common than females, until you hit the elderly population. It's really hard to say, as prostatitis can cause UTI's. I don't think you can really speculate what the most common organism is for men. It's just dependent upon their history, symptoms, etc.
When I have a culture on a male they are usually pure cultures and don't have all the skin junk that women have. I have seen everything in male urine over the years, but again, it depends on what's going on with them clinically. A cancer patient on chemotherapy is going to show different stuff than a guy who has been catheterized due to a motor vehicle accident. Both of these might be different than a guy with a prostate problem, etc.
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| Malaysian
Forum Guru
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Ok thanks once again.
In that case what would be the most common organism in a patient from urinary catheter/prostatitis/pateint on chemo.?
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| bactitech
Forum Elite
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There is no common organism in these cases. One must consider the antibiotic history, diagnosis, patient's symptoms I would guess. This is where infectious disease docs get called in...
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Clinical Microbiology since 1974
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