[The drawing of blood for performing routine and complementary immunological studies in medical practice].

Here is shown that drawing blood for immunological tests represents an important stage that must be reached according to medical indications, in order to avoid errors, taking into account the large range of these tests. All along the report it is discussed the dividing of the immunological tests needed into usual ones, with a value of basis screening, and complementary tests, with a value of advanced screening and their detailing. With regards to the immunopathological substratum, it is always necessary that the immunological tests should be performed by medical staff specialized in this domain.