Carcinoembryonic antigen has a normal value of <5ug/L, so 0.76ug/L is normal.
Carcinoembryonic antigen, or CEA, is a protein complex containing polysaccharides. CEA is usually synthesized in the gastrointestinal tract or certain tissues of the fetus at an early age, but the level gradually decreases after the sixth month of gestation and is very low after birth. Most non-smoking healthy people have levels as low as <2.5ug/L, so carcinoembryonic antigen 0.76ug/L is normal.
It is also a broad-spectrum tumor marker, which is usually used to assist the diagnosis of malignant tumors such as pancreatic cancer, colon cancer, rectal cancer, etc. It can also be used to determine the prognosis of malignant tumors, monitor the efficacy of treatment, tumor recurrence, etc. Carcinoembryonic antigen can also be mildly elevated in some non-malignant tumors such as bronchial asthma, and in a small number of heavy smokers.
If abnormal carcinoembryonic antigen is found in daily physical examination, it is recommended to go to regular hospitals to avoid delaying the condition.