The ANCA Screen with Reflex to ANCA Titer detects antineutrophil cytoplasmic antibodies, often linked to autoimmune vasculitis such as granulomatosis with polyangiitis and microscopic polyangiitis. If the screen is positive, a titer is performed to measure antibody levels for greater diagnostic accuracy. Doctors use this test to evaluate unexplained inflammation, kidney or lung issues, and guide treatment decisions in autoimmune and systemic vasculitis care.

The ANCA Vasculitides Test measures antibodies that target neutrophils, helping identify autoimmune vasculitis. It aids in diagnosing conditions including granulomatosis with polyangiitis and microscopic polyangiitis. This test provides insight into systemic inflammation, kidney disease, and respiratory involvement, supporting evaluation of autoimmune disorders linked to vascular and organ damage.

The ANCA Screen with MPO and PR3 with Reflex to ANCA Titer detects antineutrophil cytoplasmic antibodies linked to autoimmune vasculitis. By targeting myeloperoxidase (MPO) and proteinase 3 (PR3), this test helps evaluate conditions such as granulomatosis with polyangiitis or microscopic polyangiitis. It supports diagnosis, disease activity monitoring, and assessment of autoimmune inflammation.

The Proteinase-3 Antibody Test detects antibodies against proteinase-3, a neutrophil enzyme associated with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis. Elevated levels are strongly linked to granulomatosis with polyangiitis and other autoimmune small vessel vasculitides. This test aids in diagnosis, assessing disease activity, and guiding management of systemic inflammatory and autoimmune vascular conditions.

The Myeloperoxidase (MPO) Antibody Test detects autoantibodies against MPO, often associated with ANCA-associated vasculitis, including microscopic polyangiitis and granulomatosis with polyangiitis. Elevated MPO antibodies may indicate inflammation of blood vessels, kidneys, or lungs. Physicians order this blood test to support diagnosis, monitor disease activity, and guide treatment decisions for autoimmune and systemic vasculitis disorders.

The Saccharomyces cerevisiae IgA Antibodies Test detects IgA antibodies against baker’s or brewer’s yeast, often elevated in Crohn’s disease. This test helps distinguish inflammatory bowel disease from ulcerative colitis and other gastrointestinal disorders. Doctors use results with clinical evaluation and other markers to aid diagnosis, monitor disease activity, and guide ongoing management of digestive and autoimmune health conditions.

The Saccharomyces cerevisiae IgG Antibodies Test measures IgG antibodies against baker’s or brewer’s yeast, often associated with autoimmune and gastrointestinal disorders. Elevated IgG levels are commonly linked to Crohn’s disease and may help differentiate it from ulcerative colitis. This test supports evaluation of immune response, gastrointestinal inflammation, and monitoring of conditions tied to yeast-related antibody activity.

The Lactoferrin Qualitative Stool Test measures lactoferrin in stool to assess intestinal inflammation. Positive results may signal inflammatory bowel disease, including Crohn’s disease or ulcerative colitis, while negative results often suggest non-inflammatory conditions. This test supports evaluation of gastrointestinal health, immune activity, and disorders affecting digestive function.