Carcino-Embryonic Antigen (CEA)
Also known as: CEA test, Carcinoembryonic antigen, CEA tumor marker
- Blood
- Same day / 24 hours
- Home pickup
- No fasting needed
Clinical use cases
Why doctors order it- Clinician-directed monitoring of selected cancers (commonly colorectal) where CEA is relevant
- Treatment response and follow-up trend tracking
- Not routine screening
- Tumor marker primarily for monitoring, not screening
- Trend tracking is more useful than single readings
- Smoking and benign inflammation can raise CEA