What is cea carcinoembryonic antigen value?

When doing physical examination, we often come across the medical term cea carcinoembryonic antigen value, and many people don't understand what it means. Let's tell you what this is all about.

Methods/steps

First: First, let's understand the significance of cea carcinoembryonic antigen value. Carcinoembryonic antigen: it is an auxiliary diagnostic index of digestive tract tumors. [Reference value] ≤ 5 ng/ml. CEA was originally found in colon cancer and fetal intestine, hence the name carcinoembryonic antigen.

Second: Generally speaking, if cea is elevated, it may be cancer. Elevated CEA is common in colorectal cancer, pancreatic cancer, gastric cancer, small cell lung cancer, breast cancer and medullary thyroid cancer. However, in smoking, pregnancy and cardiovascular diseases, diabetes, nonspecific colitis and other diseases, 65,438+0.5% ~ 53% of patients' serum CEA will also increase, so CEA is not a specific marker of malignant tumor, but only has auxiliary value in diagnosis. In addition, serum CEA level is significantly related to the staging of colorectal cancer.

Thirdly, although the normal range of cea carcinoembryonic antigen value is 0-5ug/l, the reference value is different in different regions. The serum CEA concentration of 97% healthy adults is below 2.5 ng/mi, so the value of carcinoembryonic antigen (CEA) is very small.

Matters needing attention

It can be seen that cea carcinoembryonic antigen value is mainly used to diagnose cancer. If the value is very high, it means that almost all of them have cancer and should be treated in time.