Kidney function is measured in eGFR, or estimated glomerular filtration rate.
Wall Street Journal(Sep 21, 2015)
They define the disease in terms of how efficiently kidneys filter the waste from our blood, a measure called the glomerular filtration rate.
New York Times(Sep 14, 2015)
In the kidneys, it can trigger a condition known as glomerular hyperfiltration disease, which can lead to kidney failure.
Nature(Nov 11, 2014)