What Is Open Gallbladder Removal. Open gallbladder removalâor cholecystectomy âis surgery that offers permanent relief to a patient suffering from gallstones and other problems associated with the gallbladder. The gallbladder is a small organ located near the liver. It stores bileâwhich is a special fluid produced in the liver.
GFR is a test that helps measure the level at which an individual's kidney is functioning. It is calculated on the basis of factors such as age, gender, race, and blood creatinine. Normal GFR values are between 90 to 120 ml/min. A GRF below 60 ml/min could mean that some kidney damage has occurred.
8 ]. Age: Glomerular filtration rate deÂ­clines with age. A rule of thumb is that the GFR stays within the normal range (~100 mL/min) until the age of 40, and then declines at approximately 10 mL/min per decade, so that at age 80, normal GFR is 60 mL/min. rule of thumb is that the GFR stays within the normal range (~100 mL/min) until the age of 40, and then declines at approximately 10 mL/min per decade, so that at age 80, normal GFR is 60 mL/min.