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Related Experiment Videos

Hypouricemia and intravenous infusions.

A Peretz, G Decaux, J P Famaey

    The Journal of Rheumatology
    |February 1, 1983
    PubMed
    Summary

    Hypouricemia, or low serum uric acid, is often caused by intravenous fluid administration (perfusion) in hospitalized patients. This study found that perfusions significantly increase uric acid excretion, lowering blood levels.

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    Area of Science:

    • Nephrology
    • Clinical Chemistry

    Background:

    • Hypouricemia, defined as low serum uric acid levels, can occur in hospitalized patients.
    • The clinical significance and causes of hypouricemia require further investigation.

    Purpose of the Study:

    • To investigate the clinical significance of hypouricemia in hospitalized patients.
    • To determine the impact of intravenous fluid administration (perfusion) on serum uric acid levels.

    Main Methods:

    • Retrospective and prospective study of 2,200 hospitalized patients screened for serum uric acid.
    • Analysis of patients with serum uric acid levels below 2.5 mg/dl and 2.0 mg/dl.
    • Prospective study of patients undergoing forced diuresis due to suicide attempts or renal colic.

    Main Results:

    • 4% of patients (88/2200) had serum uric acid < 2.5 mg/dl; 1% (23/2200) had levels < 2.0 mg/dl.
    • 36.4% (32/88) of patients with low uric acid were receiving forced diuresis.
    • Perfusion significantly increased fractional excretion of uric acid, leading to decreased serum levels.

    Conclusions:

    • Forced diuresis and associated perfusions are a significant cause of hypouricemia in hospitalized patients.
    • Increased uric acid excretion due to perfusion explains the observed decrease in serum uric acid levels.
    • Evaluation of serum uric acid levels in hospitalized patients should consider recent intravenous fluid administration.

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