{"id":"antibody-screen","name":"Red Cell Antibody Screen (Indirect Coombs)","shortName":"Antibody screen","aliases":["Antibody Screen","Indirect Coombs","Indirect Antiglobulin Test","IAT","RBC Antibody Screen","Unexpected Antibody Screen","Red Cell Antibody Screen","Antibody Screen, RBC","Blood Group Antibody Screen","Indirect Antiglobulin Test (IAT)","Coombs, Indirect","Indirect Coombs Test","Antibody Screen (Indirect Coombs)","Red Blood Cell Antibody Screen"],"abbreviations":["IAT"],"loinc":[{"code":"890-4","primary":true},{"code":"75263-4","primary":false}],"specimen":"serum-or-plasma","units":[],"referenceRanges":[],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"A blood-bank test that checks whether your plasma has antibodies to red blood cell types you don't have. It is routine in pregnancy and before transfusions.","url":"https://bloodtesttracker.com/markers/antibody-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."}