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eGFR

About

The estimated glomerular filtration rate (eGFR) assesses how well the kidneys are working by estimating the amount of blood filtered through the kidneys. The glomeruli are tiny filters in the kidneys responsible for removing waste products. If these filters do not do their job properly, kidney function can be impaired. The eGFR calculation is an estimate of actual glomerular filtration rate, calculated using your age, gender, ethnicity, and serum creatinine levels.

What might a low result mean?

A low eGFR result can indicate your kidneys are not working as well as they should. eGFR can be used to assess the severity of chronic kidney disease (CKD).

It is important to note that individuals with high muscle mass as well as people of certain ethnicities can have a low eGFR which is normal for them. Temporary decreases in eGFR can occur when someone is dehydrated, so a repeat test is often recommended.

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