Description
Why It’s Done:
The CEA test is commonly performed to:
• Monitor cancer treatment in patients with colorectal cancer or other cancers that produce CEA.
• Detect cancer recurrence after treatment or surgery.
• Assess the effectiveness of treatment, including chemotherapy or surgery.
• Screen for cancer in high-risk individuals, though it is not typically used for general cancer screening due to its lack of specificity.
While CEA is most often associated with colorectal cancer, the test may also be used to evaluate other cancers, non-cancerous conditions, or to monitor chronic conditions affecting the liver or gastrointestinal system.
Preparation:
• No special preparation (such as fasting) is required for the CEA test.
• Inform your doctor about any recent illnesses, medications, or treatments, as certain medications (e.g., smoking or specific chemotherapy drugs) may affect CEA levels.
• A blood sample will be collected from a vein in your arm for analysis.
