Preparing Confit. To make a classic duck confit, you'd first season duck legs with salt, brown sugar, garlic and fresh herbs such as thyme and other spices. Then, the duck is simmered in duck fat and water for a few hours. The water will slowly cook off while the fat remains.
Glomerular filtration rate. Glomerular filtration rate (GFR) is a test used by physicians and other medical professionals to see if the kidneys are working correctly. In basic terms, it is a measurement of how much liquid and waste is passing from the blood through the tiny filters in the kidney, called the glomeruli, and out into the urine during each minute.
Glomerular filtration rate (GFR). An effective way of assessing how well your kidneys are working is to calculate your glomerular filtration rate (GFR). GFR is a measurement of how many millilitres (ml) of waste fluid your kidneys can filter from the blood in a minute (measured in ml/min).lomerular filtration rate (GFR). An effective way of assessing how well your kidneys are working is to calculate your glomerular filtration rate (GFR). GFR is a measurement of how many millilitres (ml) of waste fluid your kidneys can filter from the blood in a minute (measured in ml/min).