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Fractionele excretie van natrium

Plasma natrium mmol/l
Urine natrium mmol/l
Plasma creatinine micromol/l
Urine creatinine micromol/l

Referentiewaarden
FENa <1% prerenaal
FENa >1% renaal
FENa >4% postrenaal

Referenties
Espinel et al. Differential diagnosis of acute renal failure. Clin Nephrol 1980 Feb;13(2):73-7.