Our thoughts are with our friend & colleague Dr. Craig Spencer during this difficult time and with all patients with Ebola across the world.

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MDCalc

Fractional Excretion of Sodium (FENa)

Determines if renal failure is due to pre-renal, post-renal, or intrinsic renal pathology.

Calculations must be re-checked and should not be used alone to guide patient care nor should they substitute for clinical judgement. disclaimer