What sample is required?
The determination is made from a venous blood sample from the arm.
Is some kind of prior preparation necessary?
For this test you do not need any special preparation.
Why do the analysis?
It is a sensitive marker used for stomach cancer, alone and in association with CA 19-9 and CEA. CA 72-4 is used in ovarian cancer to specifically monitor mucinoid types.
When to do the analysis?
When the doctor suspects stomach cancer through other complementary tests.