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My last blood test revealed an elevation in my creatinine level. What does this indicate?
Creatinine is a waste product in the blood that comes from muscle activity. Healthy kidneys remove creatinine from the blood. As kidney function slows down, creatinine level goes up. With a creatinine level, you can figure out a glomerular filtration rate (GFR) using the DaVita.com GFR calculator. GFR is the best measure of kidney function and it tells the stage of kidney disease. Talk with a doctor about GFR and what treatment is best for you.