CEA Tumor Marker Blood Test
 
 

CEA Tumor Marker Blood Test

A CEA tumor marker blood test measures how much carcinoembryonic antigen (CEA) is in an individual's blood. A high amount of CEA in an adult's blood could indicate the presence of cancer. This test is not used to screen for cancer. It is conducted to check for a return of cancer in a person already diagnosed with the disease.

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