Association of Fractional Excretion of Uric Acid in Patients Presenting with Hyponatremia

Abstract

Hyponatremia is a prevalent electrolyte imbalance observed in hospitalized patients, with the syndrome of inappropriate antidiuresis (SIADH) being the most common underlying cause. Accurate clinical assessment of a patient's volume status, which is crucial for diagnosing hyponatremia, is often challenging and imprecise. In this study a total of 83 patients with hyponatremia are studied. This study aims to evaluate various diagnostic tools to enhance the accuracy of differential diagnosis for hyponatremia. Additionally, it seeks to investigate the diagnostic potential of fractional excretion of uric acid (FEUA) over fractional excretion of sodium (FENa) in patients presenting with hyponatremia