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19001717 An "ANCA IF/Kidney Screening (p-ANCA c-ANCA) test" is a blood test that uses indirect immunofluorescence (IF) to detect the presence of antineutrophil cytoplasmic antibodies (ANCAs), specifically looking for the "perinuclear" (p-ANCA) and "cytoplasmic" (c-ANCA) staining patterns, which can indicate potential kidney damage associated with autoimmune diseases like vasculitis; this test is often used to screen for possible kidney involvement in conditions like granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA).
