Flow meter urine testing: a practical proposition in patients attending for urodynamics?

BJU International
Hashim Hashim, Paul Abrams

Abstract

To find a practical way of detecting urinary tract infection (UTI) before invasive urodynamic testing, as UTIs after urodynamics are well documented, but there are no standard guidelines about when urine should be analysed before urodynamics. Before urodynamics all patients are asked to provide a free urine flow; the patient is then catheterized to obtain a catheter-specimen of urine that is tested for infection by a urine dipstick. If the dipstick is found positive for nitrites and/or leukocytes, the test is abandoned and the sample sent for microscopy, culture and sensitivity. In the present study, patients were asked to provide a free urine flow into the flowmeter as usual. Between patients, the flowmeter was washed with soap and water and dried, so that there would be no cross-contamination between patients' urine results. Urine was collected as usual and tested using a dipstick, the patient was then catheterized and another dipstick test done on the catheter specimen of urine (CSU), to compare results. Pairs of urine samples, when positive for nitrite were 100% consistent, and 89% of pairs positive for leukocytes were the same before and after catheterization. The remaining 11% (all women) of the positive leukocyte group h...Continue Reading

References

Feb 1, 1989·Annals of Emergency Medicine·F G Walter, R K Knopp
Apr 12, 2002·Neurourology and Urodynamics·Werner SchäferUNKNOWN International Continence Society
May 16, 2002·BJU International·I OkorochaI Gould
May 29, 2004·American Journal of Obstetrics and Gynecology·Shing-Kai YipDaljit Sahota
Jun 4, 2004·BMC Urology·Walter L J M DevilléLex M Bouter
May 20, 2005·American Journal of Obstetrics and Gynecology·David D RahnJoseph I Schaffer

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Citations

Aug 24, 2006·BJU International·Rufus Cartwright, Linda Cardozo

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