At a Glance
Why Get Tested?
To determine if your kidneys are functioning normally and to monitor treatment for kidney disease
When to Get Tested?
Routinely as part of a comprehensive or basic metabolic panel; when your doctor suspects that you are suffering from kidney dysfunction or when you are acutely or chronically ill with a condition that may affect your kidneys and/or be worsened by kidney dysfunction; at intervals to monitor treatment for kidney disease or kidney function while on certain medications
A blood sample drawn from a vein in your arm and/or a 24-hour urine sample
Test Preparation Needed?
You may be instructed to fast overnight or refrain from eating cooked meat; some studies have shown that eating cooked meat prior to testing can temporarily increase the level of creatinine.