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...
1 While donors with Type AB blood can only give red cells to other Type AB recipients, they are the universal plasma donors. 2  The âright typeâ donation for AB donors may be an apheresis donation of plasma or plasma and platelets.3  The donation takes approximately 1 hour and 15 minutes.onation of 'whole blood' is the most common type of blood donation, but there are a few other types of blood donation. Donation types include: