Search results
The Fractional Excretion of Sodium (FENa) determines if renal failure is due to pre-renal, intrinsic, or post-renal pathology.
The fractional excretion of sodium (FE Na) is the percentage of the sodium filtered by the kidney which is excreted in the urine. It is measured in terms of plasma and urine sodium, rather than by the interpretation of urinary sodium concentration alone, as urinary sodium concentrations can vary with water reabsorption.
Nov 15, 2022 · The fractional excretion of sodium (FENa) measures the percent of filtered sodium that is excreted in the urine. This calculation is widely used to help differentiate prerenal disease (decreased kidney perfusion) from acute tubular necrosis (ATN) as the cause of acute kidney injury (AKI, formerly called acute renal failure).
Fractional excretion of sodium is often inac - curately elevated in patients receiving diuretics because of diuretic-induced natriuresis; fractional excretion of urea
Feb 3, 2022 · The FENa calculation estimates the percentage of sodium filtered by the kidneys that ends up being excreted into the urine. (The acronym FENa derives from “fractional excretion” and “Na." Na is the chemical symbol for sodium.)
Simple to obtain yet complex to interpret, the fractional excretion of sodium (FENa) is frequently quoted when a nephrology consult is placed.
Mar 25, 2024 · This FENa calculator (fractional excretion of sodium calculator) can be useful in the evaluation of acute kidney failure and low urine output. You can use this tool to determine the cause of kidney failure — whether it is due to pre-renal, post-renal or intrinsic renal pathology.
Oct 31, 2021 · Fractional excretion of sodium is the amount of salt (sodium) that leaves the body through urine compared to the amount filtered and reabsorbed by the kidney.
The FENa calculator determines the fractional excretion of sodium, which is a determination based on urine and plasma sodium and creatinine values. FENa offers information about the kidney pathology that is likely to have caused or to cause renal failure, be it pre-, post- or intrinsic renal.
FENa Calculator. Calculate the fractional excretion of sodium given the serum and urine sodium, and the serum and urine creatinine. To accurately interpret FENa, patients should not have recently received diuretics.
