Overview What is a CEA test? A carcinoembryonic antigen (CEA) test measures a specific blood protein called CEA. Everyone is born with high levels of this protein. CEA decreases as you get older. But …

Mar 21, 2025 · Doctors don't use the CEA test to make a first-time diagnosis of cancer. This test isn't an accurate way to screen for it because many other diseases can cause the levels of this protein to...

Oct 7, 2025 · Carcinoembryonic Antigen (CEA) is a glycoprotein involved in cell adhesion and is normally produced during fetal development. In healthy adults, CEA levels are very low or nearly …

Aug 5, 2025 · Carcinoembryonic Antigen (CEA) is a protein that serves as a tumor marker, meaning its levels can be elevated in the presence of certain cancers. While it is naturally present in fetal tissue, …

Oct 18, 2025 · What Is the Carcinoembryonic Antigen (CEA) Blood Test? The CEA blood test helps monitor cancer treatment and can show if cancer is getting better or worse. CEA levels aren't used to …

Learn what CEA levels indicate cancer. Carcinoembryonic antigen (CEA) blood tests serve as an important tool in cancer detection and monitoring. Understanding what level of CEA indicates cancer …

A CEA (carcinoembryonic antigen) test measures CEA in a sample of blood or other body fluid. It helps check if treatment for certain cancers is working. Learn more.

Aug 28, 2023 · The carcinoembryonic antigen (CEA) test measures the level of CEA in the blood. CEA is a protein normally found in the tissue of a developing baby in the womb. The blood level of this …

Sep 25, 2025 · In general, there's nothing you have to do before this test, unless your doctor tells you to. A health professional uses a needle to take a blood sample, usually from the arm. When a blood …

CEA is most frequently tested in blood. It can also be tested in body fluids and in biopsy tissue. What is the normal range for CEA blood levels? The normal range for CEA in an adult non-smoker is <2.5 …