Voided Urine Under Fire as Cystitis Test

November 13, 2013 10:47 PM

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Voided midstream urine cultures frequently contained bacteria not found in paired urethral catheter specimens, questioning the value of midstream voided urine for diagnosis of acute bladder infection, investigators found.

The presence of Escherichia coli in midstream specimens had 93% positive predictive value for acute cystitis. However, more than 10% of cultured specimens also grew enterococci and group B streptococci, which had poor correlation with catheter urine cultures, Thomas M. Hooton, MD, of the University ...

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