Blood Type (ABO/Rh)
Blood type is determined by the presence or absence of antigens (A, B) on the surface of red blood cells and the Rh factor (positive or negative).
Category: Complete Blood Count
Also known as: blood type, blood group, abo, abo type, abo group, abo rh, blood group abo rh, type and screen
High values may indicate
Blood type does not have high or low values. It is a classification: A, B, AB, or O, each with Rh positive or negative.
Low values may indicate
Blood type does not have high or low values. It is a fixed characteristic determined by genetics.
Frequently asked questions
- Where do Blood Type (ABO/Rh) reference ranges come from?
- BloodId uses ABIM standard reference ranges and educational information from MedlinePlus (see our methodology). Reference ranges still vary by lab, age, and sex, so always compare against your own report.
- Can I track Blood Type (ABO/Rh) over time?
- Yes. Upload results from any lab and BloodId charts your Blood Type (ABO/Rh) over time against its reference range, so you can see whether the trend is rising, falling, or stable.
Related biomarkers
Source: MedlinePlus, U.S. National Library of Medicine
Analyze your Blood Type (ABO/Rh) with AI
Chart your Blood Type (ABO/Rh) over time
Translate your Blood Type (ABO/Rh) result into plain English