{"id":"rh-factor","name":"Rh (D) Type","shortName":"Rh type","aliases":["Rh Factor","Rh Type","Rh","Rh(D)","RhD","Rh Positive/Negative","D Antigen","Rhesus (Rh) Factor","Rhesus","Rhesusfaktor","Rh Typing","RhD Type","Rh Group","Rh Status","Rhesus Factor","Rh Blood Group"],"abbreviations":["Rh","RhD","Rh(D)"],"loinc":[{"code":"10331-7","primary":true},{"code":"882-1","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":"Shows whether your red blood cells carry the Rh (D) protein: positive if they do, negative if not. It matters for transfusions and pregnancy.","url":"https://bloodtesttracker.com/markers/rh-factor","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}