Creatinine test

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How you prepare

By Mayo Clinic staff

The serum creatinine test is a common blood test. If your blood sample is being tested only for creatinine, you can eat and drink normally before the test. If your blood sample will be used for additional tests, you may need to fast for a certain amount of time before the test. Your doctor will give you specific instructions.

MY00144

July 31, 2008

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