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www.reference.com/world-view/normal-cea-level-b9ea5969bf1e7b67

The normal value for those taking a CEA, or carcinoembryonic antigen, blood test is 0 to 2.5 micrograms per liter, according to MedlinePlus. For smokers, the normal value range is 0 to 5 micrograms per liter.

www.reference.com/article/very-high-cea-level-164a010afb702103

A CEA test result of 20 nanograms per milliliter or higher is a very high level, according to Healthline. A level this high not only strongly suggests the presence of cancer, it can also mean that the cancer has metastasized, or spread to other parts of the body.

www.reference.com/article/cea-test-normal-levels-e4f968d7f945025a

CEA tests determine the amount of carcinoembryonic antigen in the blood, and typical normal levels range from 0 to 2.5 micrograms per liter (mcg/L) of blood, MedlinePlus reports. Smokers generally show higher counts in the blood, with a normal range of 0 to 5 mcg/L

www.reference.com/article/normal-value-cea-6c9d02056c894329

The normal range for carcinoembryonic antigens is 0 to 2.5 micrograms per liter of blood, states MedlinePlus. For smokers, 0 to 5 micrograms per liter of blood is considered normal.

www.reference.com/article/cea-blood-test-8952c2fe2cab09a6

A CEA test, also known as a carcinoembryonic antigen test, is a medical procedure during which the blood levels of the CEA protein are measured, according to WebMD. It is performed on patients who may suffer from cancer of the colon, rectum, lungs, pancreas, ovaries or breasts.

www.reference.com/world-view/causes-elevated-cea-f25db32e70324439

Elevated carcinoembryonic antigen is caused by conditions such as cancer, pancreatitis, smoking infections and cirrhosis of the liver. The normal level of CEA in an adult that does not smoke is

www.reference.com/article/normal-range-cea-test-a8a04251494cd0ad

The normal range for a CEA blood test is 0 to 2.5 micrograms per liter, according to MedlinePlus. For smokers, an acceptable range is 0 to 5 micrograms per liter. This test measures the amount of carcinoembryonic antigen, a protein, in the blood.

www.reference.com/article/considered-normal-cea-test-results-2e992c72c6cb4cc9

A normal CEA test result ranges from 0 to 2.5 micrograms per liter, notes MedlinePlus. CEA stands for carcinoembryonic antigen, and it is a protein found in a developing fetus.

www.reference.com/article/considerations-cea-blood-test-e1b364d0e0af5aa4

Considerations for a carcinoembryonic antigen test include smoking, cirrhosis and other factors that can raise CEA levels in the blood of those who do not have cancer, explains Drexel University College of Medicine. A doctor must order other tests to diagnose the cause of elevated CEA levels.

www.reference.com/article/cea-levels-used-monitoring-colon-cancer-6cfde4236fcb6bcd

The carcinoembryonic antigen, or CEA, levels of postoperative colon cancer patients are regularly checked by physicians as changes in the levels may indicate a relapse of the cancer. Relapse of other types of cancers such as cancer of the rectum, lungs, breast, pancreas, stomach and ovaries may also