Why it matters: Creatinine is a waste product filtered by the kidneys, and elevated levels may indicate reduced kidney function or disease. How it’s measured: Blood and urine tests, including eGFR ...

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The estimated glomerular filtration rate (eGFR) is a blood test to assess kidney function. The formula for calculating eGFR takes the patient’s body size, age, and sex into account to predict how well ...

When your blood test results show you have a high creatinine level, your first thought may be to reduce your intake of protein. It sounds like a no-brainer, as it's commonly talked about with diet and ...

Dear Doctors: My father has diabetes and high blood pressure. Sometimes he fails to follow medical care for these diseases. Now his level of creatinine has reached 2.6 mg/dL, which is very high. He is ...