Carcinoembryonic Antigen (CEA) is a protein that may also be used as a tumor marker. CEA is typically found in the blood of a developing fetus, but disappears almost entirely from the blood stream after birth. The normal range of CEA in an adult non-smoker is less than 2.5 ng/mL (nanograms per milliliter), and less than 5.0 ng/mL for an adult smoker. However, certain cancers like colorectal cancer and those involving the gastrointestinal tract are known to increase CEA levels in adults. CEA levels greater than 20 ng/mL before therapy are associated with metastatic cancer.
Carcinoembryonic Antigen (CEA) is a protein that may also be used
as a tumor marker. CEA is typically found in the blood of a
developing fetus, but disappears almost entirely from the blood
stream after birth. The normal range of CEA in an...
More
Carcinoembryonic Antigen (CEA) is a protein that may also be used as a tumor marker. CEA is typically found in the blood of a developing fetus, but disappears almost entirely from the blood stream after birth. The normal range of CEA in an adult non-smoker is less than 2.5 ng/mL (nanograms per milliliter), and less than 5.0 ng/mL for an adult smoker. However, certain cancers like colorectal cancer and those involving the gastrointestinal tract are known to increase CEA levels in adults. CEA levels greater than 20 ng/mL before therapy are associated with metastatic cancer.Carcinoembryonic Antigen (CEA) is a protein that may also be used as a tumor marker. CEA is typically found in the blood of a developing fetus, but disappears almost entirely from the blood stream after birth. The normal range of CEA in an... More
