Synonyms: Clearance, Creatinine Why It Is Done • Determine whether your kidneys are functioning normally. • Monitor the progress of your kidney disease. • Monitor the kidney function of people who take medications that can cause kidney damage. • Determine whether severe dehydration is present. Test Overview A creatinine clearance test measures how well creatinine is removed from your blood by your kidneys.
Compared to a blood creatinine level, a creatinine clearance test provides a more precise measure of how well
your kidneys are working. How To Prepare Avoid strenuous exercise 48 hours prior to having creatinine tests.
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