What is the CEA Test?
The CEA test is a simple blood test that checks for a substance called carcinoembryonic antigen. Doctors often use this test as a cancer marker. In other words, it helps them look for signs of certain cancers in the body. Although everyone has a small amount of CEA, higher levels can sometimes point to cancer. However, this test alone cannot diagnose cancer. Instead, it is one tool among many that doctors use.
Why is the CEA Test Done?
Doctors order the CEA test for several reasons. First, it can help find out if cancer is present, especially in the colon or rectum. Second, it helps track how well cancer treatment is working. For example, if CEA levels drop after treatment, it may mean the treatment is working. Third, it can help check if cancer has come back after treatment. In the US and UK, this test is often used for people with a history of certain cancers.To help detect cancer, especially colon and rectal cancerTo monitor cancer treatment progressTo check for cancer returning after treatment
How is the CEA Test Performed?
The CEA blood test is quick and simple. A healthcare worker will clean your arm and use a small needle to draw blood. Usually, the blood is taken from a vein in your arm. The process takes only a few minutes. Afterward, you can go back to your normal activities. Sometimes, you may feel a little pinch or bruise, but this goes away soon. You do not need to fast or do anything special before the test unless your doctor tells you.
Understanding CEA Test Results
After the test, your doctor will explain what your CEA levels mean. Normal CEA levels are usually low. However, high levels do not always mean you have cancer. For example, smoking, infections, or other health problems can also raise CEA. On the other hand, if you have cancer, high CEA may show the cancer is active or spreading. If your CEA drops after treatment, it often means the treatment is working. But, only your doctor can interpret your results based on your health and history.Low CEA: Usually normal, but not alwaysHigh CEA: May suggest cancer or other conditionsChanging CEA: Helps track treatment or cancer return
Limitations and Risks of the CEA Test
While the CEA test is helpful, it has limits. For instance, not all cancers raise CEA levels. Some people with cancer have normal CEA. Also, other health issues can cause high CEA. Because of this, doctors never use the CEA test alone to diagnose cancer. Instead, they use it with other tests and exams. The risks of the blood test itself are very low. You might have mild pain, bruising, or bleeding at the needle site, but these problems are rare and go away quickly.
When to Consult a Doctor
If your doctor recommends a CEA test, consult Cure Pathology for accurate testing and guidance. Always discuss your results with our healthcare experts. If you notice new symptoms or have questions, speak with our specialists immediately. Early action helps ensure timely care and better outcomes.
Schedule a CEA test at Cure Pathology and get personalized advice from our experienced healthcare professionals on interpreting results and next steps.
