Carcinoembryonic Antigen (CEA) Blood Test

What is the purpose of this test?

The Carcinoembryonic Antigen (CEA) Blood Test is designed to measure the levels of CEA, a protein that can be found in higher amounts in some types of cancer. While CEA is not specific to one type of cancer, elevated levels may indicate cancers of the colon, rectum, pancreas, stomach, lung, breast, or thyroid. This test can be useful in monitoring cancer treatment effectiveness, checking for cancer recurrence, and, in some cases, aiding in initial diagnosis.

CEA levels can also be elevated in non-cancerous conditions such as inflammatory bowel disease, chronic lung disease, and liver disease. Therefore, this test is not used alone for cancer diagnosis but rather as part of a larger diagnostic and monitoring plan. If CEA levels are found to be elevated, further testing may be needed to determine the cause.

Who should get this test?

• Individuals undergoing treatment for cancers associated with elevated CEA levels.
• Those in remission from certain cancers who need monitoring for recurrence.
• Individuals with a family history of colorectal or other cancers linked to high CEA levels.
• People experiencing symptoms that could be related to gastrointestinal, lung, or pancreatic cancer.
• Those with chronic inflammatory conditions who need to assess their CEA levels.

When should I order the Carcinoembryonic Antigen (CEA) Blood Test?

Individuals may consider ordering this test if they have symptoms or concerns related to cancer monitoring and diagnosis. Symptoms to consider:

• Unexplained weight loss or loss of appetite.
• Persistent fatigue or weakness.
• Changes in bowel habits, such as chronic constipation or diarrhea.
• Blood in the stool or unusual bleeding.
• Persistent cough or difficulty breathing.
• Chronic abdominal pain or bloating.

If you have these symptoms or a history of cancer, the Carcinoembryonic Antigen (CEA) Blood Test can provide useful information to guide you and your doctor in monitoring your health and determining the next steps for evaluation or treatment.