ALPF Medical Research

Pre-renal cause

Renal cause

Urine osmolality (mOsmol/kg)

>500

<400

Urine Na (mmol/l)

<20

>40

Urine:Plasma creatinine

>40

<20

Fractional Na excretion*

<1

>2

iCOxUrinePbsma [Ni-] UmePlarna. [Creatinine]