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Related Experiment Videos

A urine analysis method suitable for children's nappies

A Edwards1, J van der Voort, R Newcombe

  • 1Department of General Practice, University of Wales College of Medicine, Llanedeyrn Health Centre, Cardiff, UK.

Journal of Clinical Pathology
|July 1, 1997
PubMed
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A new method of testing children's urine on panty-liners accurately detects urinary tract infections (UTIs). This simple approach can help identify children needing further urine culture in primary care settings.

Area of Science:

  • Pediatric Nephrology
  • Clinical Diagnostics
  • Infectious Diseases

Background:

  • Urinary tract infections (UTIs) in infants are often underdiagnosed, potentially leading to severe complications like renal scarring, hypertension, and renal failure.
  • Difficulties in diagnosing UTIs in children necessitate simple and reliable preliminary testing methods.
  • Early and accurate diagnosis is crucial to prevent long-term sequelae of pediatric UTIs.

Purpose of the Study:

  • To evaluate the diagnostic accuracy of a novel, simple method for detecting urinary tract infections (UTIs) in children.
  • To assess the reliability of testing urine for nitrite and leucocyte esterase using panty-liners in a primary care context.
  • To determine the feasibility of this method for preliminary screening of pediatric urine samples.

Main Methods:

Related Experiment Videos

  • An in vitro study compared conventional urine dipstick analysis with analysis of urine-soaked panty-liners using two types of test sticks (Boehringer Mannheim Nephur and Bayer Multistix 8SG).
  • The study analyzed agreement, bias, sensitivity, specificity, and negative predictive values for each method.
  • Two brands of panty-liners were used in conjunction with the urine analysis test sticks.

Main Results:

  • Testing urine on panty-liners demonstrated consistent results comparable to conventional dipstick analysis.
  • For laboratory-confirmed UTIs, Boehringer sticks showed 94% sensitivity and 98% negative predictive value at 21.8% prevalence.
  • At lower prevalences (1-5%) expected in primary care, both Bayer and Boehringer sticks achieved high negative predictive values (98.7%-99.9%), indicating strong reliability for ruling out UTIs.

Conclusions:

  • The panty-liner method for urine testing is accurate and comparable to traditional urine analysis.
  • This simple technique holds potential for primary care settings to screen unwell children for UTIs.
  • It can effectively identify children who require confirmatory urine culture, improving diagnostic efficiency.