Calculated Mass Concentration of Creatinine in Serum/Plasma

Why Is This Test Done?

Your doctor may order this test if you have symptoms of kidney disease (like fatigue, swelling, or frequent urination) or if you have risk factors such as high blood pressure, diabetes, or a family history of kidney problems. It’s also used to monitor kidney function during treatment for conditions like heart disease or certain medications.

How Is This Test Performed?

A small blood sample is drawn from a vein, usually in your arm. The blood is sent to a lab where it’s analyzed using a method that calculates creatinine levels based on your blood sample and estimated kidney function.

What Do the Results Mean?

The result is a calculated estimate of how well your kidneys are filtering waste. Lower-than-expected values may suggest kidney issues, while higher-than-expected values could indicate kidney damage or other health concerns. Your doctor will interpret the result in the context of your overall health.

What Are Common Causes of Abnormal Results?

Abnormal results may be due to kidney disease, dehydration, muscle disorders, or certain medications. High levels can also occur if you have a condition that affects how your body processes creatinine (e.g., liver disease). Low levels might be seen in overhydration or certain genetic conditions.