CEA tests are a type of blood test used to measure the amount of carcinoembryonic antigen (CEA) in the blood. CEA is a protein that is produced by some types of cancer cells, so it can be used to detect the presence of cancer in the body. CEA tests are most commonly used to monitor the progression of colorectal cancer, but they can also be used to diagnose other types of cancer, such as lung, breast, and ovarian cancer.
When is a CEA Test Needed?
CEA tests are typically used to monitor the progression of cancer in patients who have already been diagnosed with the disease. They can also be used to detect the presence of cancer in patients who are at high risk for developing the disease.
How Does a CEA Test Work?
A CEA test is a simple blood test that measures the amount of CEA in the blood. The test is usually performed in a doctor’s office or laboratory. A sample of blood is taken from the patient and sent to a laboratory for analysis. The results of the test are then used to determine the level of CEA in the patient’s blood.
How Do I Prepare for a CEA Test?
There is no special preparation required for a CEA test. However, it is important to inform your doctor of any medications you are taking, as some medications can affect the results of the test.
What Can I Expect During a CEA Test?
The CEA test is a simple and painless procedure. A sample of blood is taken from the patient and sent to a laboratory for analysis. The results of the test are usually available within a few days.
What Are the Risks of a CEA Test?
The CEA test is a safe and painless procedure. There are no known risks associated with the test.
What Are the Side Effects of a CEA Test?
There are no known side effects associated with the CEA test.
What Do the Results of a CEA Test Mean?
The results of a CEA test can indicate the presence of cancer in the body. A high level of CEA in the blood can indicate the presence of cancer, while a low level of CEA can indicate that the cancer is in remission.
What is a Normal CEA Level?
A normal CEA level is typically less than 5 nanograms per milliliter (ng/mL).
What Levels of CEA Indicate Cancer?
A CEA level of 5 ng/mL or higher can indicate the presence of cancer.
Can CEA Levels Be High Without Cancer?
Yes, CEA levels can be high without cancer. High CEA levels can be caused by other conditions, such as inflammation or liver disease.
References
- American Cancer Society. (2020). Carcinoembryonic Antigen (CEA) Test. Retrieved from https://www.cancer.org/treatment/diagnosis-staging/tests/carcinoembryonic-antigen-cea.html
- Mayo Clinic. (2020). Carcinoembryonic Antigen (CEA) Test. Retrieved from https://www.mayoclinic.org/tests-procedures/cea-test/about/pac-20384717
- National Cancer Institute. (2020). Carcinoembryonic Antigen (CEA) Test. Retrieved from https://www.cancer.gov/publications/dictionaries/cancer-terms/def/carcinoembryonic-antigen-cea-test
Keywords: CEA test, cancer, colorectal cancer, blood test, CEA levels