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  2. Creatinine test - Mayo Clinic

    • A creatinine test is a measure of how well your kidneys are performing their job of filtering waste from your blood. Creatinine is a chemical compound left over from energy-producing processes in your muscle… See more

    Why It's Done

    Your doctor or other health care provider may order a creatinine test for the following reasons: 1. … See more

    Mayo Clinic
    How You Prepare

    A standard blood test is used to measure creatinine levels in your blood (serum creatinine). Your doctor may ask you not to eat (fast) overnight before the test. For a creatinine u… See more

    Mayo Clinic
    What You Can Expect

    For a serum creatinine test, a member of your health care team takes a blood sample by inserting a needle into a vein in your arm. For a urine test, you’ll need to provide a single sa… See more

    Mayo Clinic
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  1. Understanding Creatinine
    Creatinine is a waste product of muscle activity that your kidneys filter out of your blood and send to your urine.
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  2. Creatinine | National Kidney Foundation

  3. Creatinine Clearance Test: Purpose, Levels & Results

  4. Creatinine Clearance Blood Test: Purpose, Procedure, Results

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