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Related Experiment Videos

Asymptomatic hematuria. Diagnostic approach

V E Poliak, B S Ooi

    Postgraduate Medicine
    |September 1, 1977
    PubMed
    Summary

    Diagnosing asymptomatic hematuria requires ruling out underlying diseases through lab tests and imaging. If the cause remains unclear, a renal biopsy may reveal conditions like glomerulonephritis.

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    Area of Science:

    • Nephrology
    • Urology
    • Diagnostic Medicine

    Background:

    • Hematuria, or blood in urine, can be asymptomatic but may indicate serious underlying conditions.
    • A thorough diagnostic approach is crucial before classifying hematuria as benign.

    Purpose of the Study:

    • To outline a systematic diagnostic strategy for evaluating patients with hematuria.
    • To identify common causes of hematuria, particularly renal parenchymal diseases.

    Main Methods:

    • Laboratory workup including urinalysis, clinical chemistry, renal function tests, and hematologic studies.
    • Imaging studies such as intravenous pyelography, cystoscopy, and retrograde pyelography.
    • Renal biopsy for cases where the cause of bleeding is not identified by initial investigations.

    Main Results:

    • Commonly identified causes include structural abnormalities, tumors, and urinary tract calculi.
    • Renal parenchymal disease is suspected when initial evaluations are inconclusive.
    • Focal proliferative glomerulonephritis and diffuse proliferative glomerulonephritis are the most frequent findings on renal biopsy.

    Conclusions:

    • A stepwise diagnostic approach is essential for accurate hematuria evaluation.
    • Renal biopsy plays a critical role in diagnosing underlying renal parenchymal diseases causing hematuria.
    • Prompt diagnosis and management of hematuria are vital for patient outcomes.

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