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Also reported in: mcg/L
Your CEA is in the normal range. This is a reassuring finding for colorectal cancer screening and post-treatment surveillance. Smokers have a slightly higher normal range of up to 5 ng/mL.
Your CEA level is undetectable. CEA is a protein produced by some cancer cells and is also elevated in certain benign conditions and smoking. An undetectable level is the ideal baseline result.
No action needed. If you are undergoing post-surgical cancer surveillance, this is an excellent result — continue regular monitoring as planned.
CEA undetectable — no detectable carcinoembryonic antigenYour CEA is within the normal reference range. This is a reassuring result for colorectal cancer monitoring. CEA can also be mildly elevated in liver disease, pancreatitis, and inflammatory conditions.
No action needed. Continue appropriate cancer surveillance based on your personal and family history.
CEA within normal reference range — no elevated colorectal or general cancer markerYour CEA is in the low-normal range. This is a favorable finding and does not indicate cancer-related CEA production.
No action needed.
CEA: low-normal — favorable baselineYour CEA is in the normal range. This is a reassuring finding for colorectal cancer screening and post-treatment surveillance. Smokers have a slightly higher normal range of up to 5 ng/mL.
No specific action required. Continue colorectal cancer screening (colonoscopy) per age-appropriate guidelines.
CEA within reference range — acceptable marker levelYour CEA is in the optimal low range. This is a very reassuring baseline result for colorectal and general cancer surveillance.
No action needed.
CEA: optimal — very low marker levelYour CEA is mildly elevated above the reference range. Mildly elevated CEA can be caused by colorectal cancer, lung cancer, breast cancer, or liver cancer, but also by benign conditions like liver disease, pancreatitis, inflammatory bowel disease, and cigarette smoking.
Discuss with your doctor. Colonoscopy and/or CT imaging may be recommended. If you smoke, this modestly elevates CEA. Repeat testing in 3 months to assess for rising trend.
CEA 3–10 ng/mL — borderline elevated; benign causes common; clinical correlation requiredYour CEA is significantly elevated. At this level, the probability of colorectal cancer or another malignancy (lung, breast, stomach, pancreas) increases meaningfully. CEA is also elevated in extensive liver disease and some inflammatory conditions.
Seek prompt specialist evaluation. Colonoscopy, CT chest/abdomen/pelvis, and targeted workup based on symptoms should be arranged. In post-surgical surveillance patients, a rising CEA is particularly important to investigate for recurrence.
CEA >10 ng/mL — significantly elevated; colorectal or other malignancy evaluation requiredYour CEA is critically elevated. At this level, the likelihood of an active malignant process — most commonly colorectal, lung, or breast cancer — is high. Very high CEA is also seen in widespread hepatic metastases.
Seek urgent oncology evaluation immediately. Comprehensive imaging and colonoscopy should be arranged as an urgent priority. If you have been previously treated for cancer, this suggests possible recurrence requiring immediate investigation.
CEA >20 ng/mL — critically elevated; high likelihood of malignant process; urgent evaluation requiredUpload your lab report and get your actual values interpreted in plain English — instantly, with no medical training required.