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.