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.
What Is the Highest GFR Level When Patients Need Dialysis. For patients with kidney disease, GFR is an important aspect for patients with kidney disease to know their real condition,and it is also an important standard to decide whether it is necessary for patients to accept dialysis.