Description
CEA (carcinoembryonic antigen)
Sample Type:Serum
Test Included:
Measurement of Carcinoembryonic Antigen (CEA) levels
Sample Required:
Blood sample
Test Time:
Results are typically available within a few days.
Test Range Values:
Normal CEA levels in nonsmokers are usually below 2.5 nanograms per milliliter (ng/mL).
What is the test?
This test measures the level of CEA, a protein often elevated in certain cancers.
Test Procedure:
A blood sample is drawn from a vein, and CEA concentration is measured in the laboratory.
When to take the test:
Typically used in cancer monitoring or to check for recurrences in patients previously treated for cancer.
Who should take the test:
Individuals with a history of cancer or symptoms suggestive of certain cancers might undergo this test.
Frequently Asked Questions (FAQs) for CEA Test:
Q1: What cancers are commonly associated with elevated CEA levels?
A: Elevated CEA levels can be seen in colorectal, pancreatic, lung, breast, and certain other cancers.
Q2: Can factors other than cancer cause elevated CEA levels?
A: Yes, non-cancerous conditions like smoking, inflammation, and certain benign conditions can lead to elevated CEA levels.
Q3: Is the CEA test sufficient for cancer diagnosis?
A: No, the CEA test alone cannot diagnose cancer. It helps in monitoring cancer treatment or detecting recurrences.
Q4: Do CEA levels always correlate with the severity of cancer?
A: Not necessarily. CEA levels may not always reflect the extent or stage of cancer.
Q5: Can CEA levels be used to predict cancer development in healthy individuals?
A: Using CEA levels as a screening tool for cancer in healthy individuals isn’t recommended due to its limited specificity and sensitivity.
*Please note that specific testing protocols and guidelines may vary based on the latest recommendations from health authorities and regulatory agencies. It is essential to consult healthcare professionals and follow local testing guidelines for accurate and appropriate testing.
