Packed red blood cells do not have an antibody, since the greatest risk of Rh incompatible blood is to current or future pregnancies. For RBCs, type O negative blood is considered a "universal donor" as recipients with types A, B, or AB can almost always receive O negative blood safely. Type AB positive is considered a "universal recipient" because they can receive the other ABO/Rh types safely. These are not truly universal, as other red cell antigens can further complicate transfusions. There are many other human blood group systems and most of them are only rarely associated with transfusion problems. A screening test is
Blood Red Sandman Blood Red Sandman "Blood Red Sandman" is the second single from Lordi's second album "The Monsterican Dream". The song's original title was "Blood Red Santa", but Asko Kallonen from BMG Finland thought it was inappropriate for a Christmas hit and many people said they would ban it because it painted a violent image of Santa. In a rebuttal to this Lordi decided to change the songs name to Blood Red Sandman which worked just as well as the original name. There is also a promo version given out by Mayan Records for promotion to their compilation album The Monster Show.