Kidney Function Test Low Creatinine. What are test to check kidney function are working 100 or not other than creatinine and urea. The blood test to determine a gfr calculates the level of creatinine a waste product in the blood according to webmd.
It gives your doctor an idea of how much. Results the normal range for creatinine in the blood may be 0 84 to 1 21 milligrams per deciliter 74 3 to 107 micromoles per liter although this can vary from lab to lab between men and women and by age. The urine creatinine test can help your doctor more accurately assess the presence or degree of kidney failure.
As my creatinine increased to 1 1 from 0 75 in 4 months a verified doctor answered a us doctor answered learn more.
A further test of kidney function is to collect all the urine passed over a period of twenty four hours and then to compare the amount of creatinine in the blood to the level in the blood stream. The causes of low creatinine differ from the causes of high creatinine. These tests used together give an indication of overall kidney function but the best way to know if your kidneys are working properly is to measure the glomerular filtration rate gfr. This is often calculated by computer and reported with the creatinine blood test.