all good except for blood type. Blood type (A/B/O) tells something about the transfusion you will need, but not nearly enough to be useful. Nobody will base a transfusion decision on your dogtag. There are dozens of other antigens that need to be cross matched with a unit of blood before it can be safely transfused into you. So the blood bank will actually mix a sample of your blood and the new unit of blood to make sure that there is compatibility. In the meantime , the traumatologists will infuse saline, another plasma volume expander or low titer O universal donor blood until the cross-matched units are available. Use the space for more useful info, like your religion, medical insurance id mumber, or astrological sign.