What is a fractional excretion of sodium?

doctors can monitor the kidneys by comparing sodium filtered and absorbed with the exclusive urine. The fractional excretion of sodium is a calculation of this measurement, which is often used when it is suspected of kidney disease. This number can also show what kind of acute kidney failure has a person, especially if there is a problem with blood flow to the kidneys or by the organ itself. Sodium in urine and plasma concentrations are usually used in measurement. These values, together with urine flow, are filtered by the kidney, are often used to calculate the fractional excretion of sodium (bitch).

sodium fractional excretion is usually determined by the blood test and using the urine sample. Blood chemistry can be analyzed to detect salt and creatinine levels, and the only discomfort is usually a needle. The test is usually performed in patients with diseases that affect EY. May detect whether there is no lack of blood flow to the kidneys in which the bitch is usually measured PŘi 1% or less. The value of more than 3% often suggests that the kidneys are damaged.

The circulatory system diseases are usually called prerenel disease when the fractional excretion of sodium is measured. If kidney failure or failure occurs, acute tubular necrosis may be the cause. Intermediate value can indicate one type of condition or blocking in or near the kidneys. Mathematical calculations are performed after analysis of blood and urine test results. Sometimes fractional excretion of other substances in urine, such as urea, uric acid or lithium, is measured.

is usually not too much preparation before the fractional test of sodium excretion. The doctor often suggests to avoid diuretics because they can change sodium absorption in Kidneys, as well as other medicines that can do so. Testing is generally low risk, while complications from blood tests may in some cases include bleeding, faintingor infection.

conditions that may be detected from fractional sodium excretion, include liver cirrhosis or congestive heart failure. Kidney conditions such as acute glomerulonephritis, kidney failure or rabdomyolysis may be associated with a low number of bitch. This number can be high if the person vomited or is treated with suction nasogastric tube, as biological processes can prevent the sodium Absolpe.