{"id":"abo-blood-group","name":"ABO Blood Group","shortName":"ABO group","aliases":["ABO Group","Blood Type","Blood Group","ABO Type","ABO","ABO Grouping","ABO/Rh","ABO Blood Type","Grupo sanguíneo","Blutgruppe","Blood Typing","ABO Typing","ABO Group (A, B, AB, O)","ABO Forward and Reverse Grouping","Tipo de sangre","Groupe sanguin"],"abbreviations":["ABO"],"loinc":[{"code":"883-9","primary":true},{"code":"882-1","primary":false},{"code":"57743-7","primary":false}],"specimen":"whole-blood","units":[],"referenceRanges":[],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"Your ABO blood group (A, B, AB or O), set by markers on your red blood cells. It stays the same for life and matters for blood transfusions and pregnancy.","url":"https://bloodtesttracker.com/markers/abo-blood-group","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}