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Related Experiment Videos

Asymptomatic microscopic hematuria.

D H Hosking1

  • 1Associate Professor of Surgery (Urology), Section Head, Section of Urology, Department of Surgery, Health Sciences Centre and the University of Manitoba, Winnipeg, Manitoba.

The Canadian Journal of Urology
|January 1, 1995
PubMed
Summary

Microscopic hematuria, or blood in urine, requires careful management. This review clarifies normal limits and diagnostic approaches to avoid unnecessary investigations for asymptomatic patients.

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Area of Science:

  • Urology
  • Nephrology

Background:

  • Microscopic hematuria without symptoms poses a diagnostic challenge for urologists.
  • Standard investigations like IVP and cystoscopy may be overutilized in asymptomatic cases.
  • Identifying glomerular causes is crucial to avoid unnecessary urological workups.

Purpose of the Study:

  • To define normal limits for microscopic hematuria.
  • To review new techniques for identifying glomerular hematuria.
  • To guide appropriate investigation strategies for asymptomatic microscopic hematuria.

Main Methods:

  • Literature review of diagnostic criteria and techniques.
  • Analysis of current urological investigation guidelines.
  • Evaluation of data supporting or refuting specific diagnostic pathways.

Main Results:

  • Established normal ranges for erythrocyte counts in urine.
  • Highlighted advanced diagnostic tools for differentiating glomerular vs. urological sources.
  • Examined evidence for selective investigation based on patient factors.

Conclusions:

  • A nuanced approach is needed for asymptomatic microscopic hematuria.
  • Newer diagnostic methods can help identify glomerular causes, potentially omitting invasive urological tests.
  • Recommendations are provided for optimizing patient investigation and management.

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