what are stool tests for crohns disease
1 Blood tests to find antibodies: These tests can sometimes help the doctor tell if you have Crohn's disease or ulcerative colitis. 2  These tests include anti-neutrophil cytoplasmic antibody with perinuclear staining (pANCA), anti-Saccharomyces cerevisiae antibody (ASCA), and outer membrane porin C (Omp C). Blood tests to find antibodies: These tests can sometimes help the doctor tell if you have Crohn's disease or ulcerative colitis. 2  These tests include anti-neutrophil cytoplasmic antibody with perinuclear staining (pANCA), anti-Saccharomyces cerevisiae antibody (ASCA), and outer membrane porin C (Omp C).