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Dear Doctors: A recent blood test showed my creatinine levels are a bit high. My doctor said it’s something we need to watch because that can be a symptom of chronic kidney disease. Is high creatinine ...

Although they share similar names, creatine and creatinine are two distinct compounds. Creatine is a naturally occurring substance in your brain and muscle tissue that gives your muscles energy.

Current equations for estimated glomerular filtration rate (eGFR) that use serum creatinine or cystatin C incorporate age, sex, and race to estimate measured GFR. However, race in eGFR equations is a ...