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
Reference range: 0–0 (Source: ABIM)
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
- What is a normal Blood Type (ABO/Rh) level?
- A typical reference range for Blood Type (ABO/Rh) is 0–0 (source: ABIM). Reference ranges vary by laboratory, age, and sex, so always compare against the range on your own lab report.
- 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
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