{"id":"anca-screen","name":"ANCA Screen (IFA)","shortName":"ANCA Screen","aliases":["ANCA Screen","ANCA IFA","Neutrophil Cytoplasmic Antibody Screen","Anti-Neutrophil Cytoplasmic Ab","ANCA","Antineutrophil Cytoplasmic Antibody","ANCA Screen with Reflex to ANCA Titer","ANCA IFA Screen","Antineutrophil Cytoplasmic Antibodies (ANCA) Screen","Cytoplasmic Neutrophilic Ab"],"abbreviations":["ANCA","ANCA IFA"],"loinc":[{"code":"17351-8","primary":true},{"code":"35279-9","primary":false},{"code":"17355-9","primary":false}],"specimen":"serum","units":[],"referenceRanges":[],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"Checks for antibodies that target neutrophils, a type of white blood cell. A positive result is linked to some forms of blood vessel inflammation and leads to more specific tests.","url":"https://bloodtesttracker.com/markers/anca-screen","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}