{"id":"ana-screen","name":"Antinuclear Antibodies (ANA) Screen","shortName":"ANA Screen","aliases":["ANA Screen","ANA","ANA Screen, IFA","Antinuclear Antibodies","ANA Direct","ANA IFA","Antinuclear Antibody","FANA","Anticuerpos antinucleares","ANA by IFA, Reflex to Titer and Pattern","ANA by IFA Rfx Titer/Pattern","ANA Screen, IFA, with Reflex to Titer and Pattern","Antinuclear Antibodies, HEp-2 Substrate, IgG, Serum","Antinuclear Ab, HEp-2 Substrate, S","Antinuclear Antibodies (ANA), Serum","Antinuclear Antibody Screen","Fluorescent ANA","ANA HEp-2","Anti-Nuclear Antibody"],"abbreviations":["ANA","FANA"],"loinc":[{"code":"42254-3","primary":true},{"code":"8061-4","primary":false},{"code":"59069-5","primary":false},{"code":"47383-5","primary":false}],"specimen":"serum","units":[],"referenceRanges":[],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"A first-step blood test that looks for antibodies to the cell nucleus. A positive result is common and does not by itself mean you have an autoimmune disease.","url":"https://bloodtesttracker.com/markers/ana-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."}