PR

Na urin, buat membedakan azotemia pre renal & renal?

Ekskresi natrium urin dapat membedakan penyebab AKI pre renal dan renal. Pada disfungsi tubuler, natrium tidak direabsorbsi sehingga konsentrasi natrium urinnya tinggi. Pada AKI pre renal, konsentrasi natrium urin < 10 mmol/l.

 Fractional sodium excretion (FeNa) calculates the sodium excretion in relation to the creatinine excretion, see formula FeNa. The concentrations of sodium in the urine and plasma (U_Naand P_Na) and the concentrations of creatinine in urine and plasma (U_Krea and P_Krea) are needed. A FeNa less than 1 suggests a renal kidney failure and a FeNa of more than 1 a prerenal kidney failure:

Calculation of FeNa