The validity of fractional excretion of uric acid in the diagnosis of acute kidney injury due to decreased kidney perfusion.

摘要

The validity of the fractional excretion of sodium (FE_Na) for the diagnosis of acute kidney injury (AKI) caused by decreased kidney perfusion is limited in patients receiving diuretics. Fractional excretion of uric acid (FE_UA) may be useful in such cases.We studied the validity of FE_UA in 44 patients, 22 (15 men and 7 women; mean age, 57.4 ± 16.2 [SD] years) with AKI caused by decreased kidney perfusion and 22 (14 men and 9 women; mean age, 54.2 ± 14.5 years) with AKI from other causes.