The Warsaw Treaty Organization (also known as the Warsaw Pact) was a political and military alliance established on May 14, 1955 between the Soviet Union and several Eastern European countries.
1 Donors with blood type A... can donate to recipients with blood types A and AB. 2  Donors with blood type B... can donate to recipients with blood types B and AB.  Donors with blood type AB...
Choose the compatible transfusion. Donate type B blood to a recipient with type O blood. Donate type O blood to a recipient with type AB blood. Donate type AB blood to a recipient with type B blood. Donate type A blood to a recipient with type B blood.