A good CEA (carcinoembryonic antigen) score is generally considered to be 0 to 2.5 ng/mL (nanograms per milliliter of blood). This range is considered the normal reference range, as explained in the provided reference. A score within this range suggests there is no significant elevation of CEA levels.
Understanding CEA Levels
CEA is a protein that can be found in the blood. It is often elevated in people with certain cancers, particularly colorectal cancer. Therefore, the test is often used to monitor the effectiveness of cancer treatment or check for recurrence.
Interpretation of CEA Levels:
| CEA Level (ng/mL) | Interpretation |
|---|---|
| 0 to 2.5 | Normal range. Suggests no significant elevation of CEA. |
| Greater than 2.5 | May indicate the presence of a cancerous or noncancerous condition. May require further evaluation. |
| Greater than 10 | Indicates a higher degree of disease. |
| Greater than 20 | May suggest that cancer is spreading. |
What does an Elevated CEA Score Mean?
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Elevated levels (above 2.5 ng/mL) can indicate several factors:
- Presence of cancer, especially colorectal cancer.
- Other cancers like lung, breast, or pancreatic cancer.
- Non-cancerous conditions, such as smoking, inflammatory bowel disease, or liver disease.
- Need for additional investigation to identify the cause of elevation.
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Elevated levels during treatment:
- May indicate that the treatment may not be as effective as hoped.
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Significant elevation (above 10 ng/mL and 20 ng/mL):
- Levels greater than 10 ng/mL indicate significant disease activity and may warrant concern.
- Levels greater than 20 ng/mL may be a strong indicator that cancer has spread (metastasized).
Important Notes:
- CEA levels are not a perfect diagnostic tool, and they are primarily used for monitoring cancer treatment and recurrence.
- An isolated CEA result should not be used to diagnose cancer. Doctors will take into account your medical history and other diagnostic testing as well.
- Always consult with your healthcare professional for accurate interpretation of your CEA results.
In summary, a good CEA score is between 0 and 2.5 ng/mL, but monitoring changes in the levels is crucial in cancer management.
