CARCINO EMBRYONIC ANTIGEN; CEA, SERUM

What this test checks

Measures CEA in blood — elevated in colon, lung, pancreatic, and other cancers. Used mainly for monitoring known cancer.

Why do people get this test?

Follow-up after cancer treatment, especially colon cancer.

When you should consider this test

• Colon cancer follow-up
• Cancer treatment monitoring
• As directed by oncologist

How to prepare

No fasting needed.