https://www.medicinenet.com/carcinoembryonic_antigen/article.htm

Both benign (harmless) and malignant (cancerous) conditions can increase the CEA level ...

https://www.ascopost.com/issues/august-15-2014/high-false-positive-rate-of-elevated-cea-seen-in-patients-with-resected-colorectal-cancer/

Aug 15, 2014 ... “Of these, 358 had a false-positive elevation of CEA level, 335 had a true-positive elevation indicative of recurrent [colorectal cancer], and 35 ...

https://www.webmd.com/cancer/cea-tests

Aug 12, 2018 ... Healthy adults have a very low level, but some types of cancer can cause it to rise . Your doctor can use CEA as a “marker” to learn more about ...

https://onlinelibrary.wiley.com/doi/pdf/10.3322/caac.21247

Oct 25, 2014 ... recommend that CEA levels be routinely monitored every. 3 to 6 months after the treatment of CRC with curative intent. A CEA level greater ...

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4954749/

Jun 20, 2016 ... We followed up her CEA level while her dose of lithium was reduced from 450 to 300 mg per day. Her CEA level decreased from 25 mg/dl to ...

https://labtestsonline.org/tests/carcinoembryonic-antigen-cea

Sep 8, 2016 ... By the time a baby is born, it drops to a very low level. In adults, CEA is normally present at very low levels in the blood but may be elevated ...

https://medlineplus.gov/lab-tests/cea-test/

Mar 12, 2019 ... A CEA (carcinoembryonic antigen) test measures the level of CEA in your blood or other body fluids. High levels can be a sign of cancer.

https://www.verywellhealth.com/carcinoembryonic-antigen-cea-797561

Feb 13, 2019 ... CEA is a blood test used to monitor some cancers, especially of the digestive tract. ... early stage cancers) have elevated levels, and false positives may occur, as many benign conditions may cause elevations in CEA.

https://medlineplus.gov/ency/article/003574.htm

Aug 14, 2017 ... The carcinoembryonic antigen (CEA) test measures the level of CEA in the blood. CEA is a protein normally found in the tissue of a developing ...

https://pathology.jhu.edu/pc/bloodmarkers.php

Elevations in CEA and CA 19-9 levels may occur in patients without cancer. For example, elevated CEA levels may be observed in smokers as well as patients ...