Fractionele natrium excretie en renal failure index

  Pre-renaal ATN Post-renaal
UNa <20 >40 >40
FeNa <1% >1% >4%
RFI <1% >1% >1%
       
Plasma creat (μmol/l):
Plasma natrium (mmol/l):
Urine creat (μmol/l):
Urine natrium (mmol/l):
FeNa (%):  
RFI (%):