{"id":"ana-titer","name":"ANA Titer (IFA)","shortName":"ANA Titer","aliases":["ANA Titer","ANA IFA Titer","Antinuclear Antibody Titer","ANA Titre","ANA Reflex Titer","Antinuclear Antibodies Titer","ANA Titer:","FANA Titer","ANA Titer, IFA"],"abbreviations":["ANA IFA titer"],"loinc":[{"code":"5048-4","primary":true},{"code":"29953-7","primary":false},{"code":"33253-6","primary":false}],"specimen":"serum","units":[],"referenceRanges":[],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"Shows how strong a positive ANA result is, written as a dilution such as 1:80 or 1:320. A bigger second number means more antibody was present.","url":"https://bloodtesttracker.com/markers/ana-titer","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}