AB Positive Blood Type (AB+) | Carter BloodCare
https://www.carterbloodcare.org/education-center/blood-types/ab-positive/
Dec 01, 2021 · 4% of the population. AB+ is a very rare and important blood type. Since the red blood cells contain both A and B antigens, the plasma (liquid portion of the blood) can be given to all patients because these donors do not make anti-A or anti-B antibodies. These donors are encouraged to give platelets or plasma by apheresis, if possible.
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