A 20-year-old man arrives at your trauma center suffering from a gunshot wound to the abdomen. His blood pressure is 68/38 mm Hg and his heart rate is 137 beats/min. He is diaphoretic and pale. Unbeknownst to you, he has a group B blood type. You initiate a massive transfusion protocol and receive type O red blood cells and type A plasma from the blood bank. According to a recent retrospective study regarding type A plasma and ABO compatibility, which of the following statements is most likely true about his outcome after receiving incompatible group A plasma compared with receiving compatible plasma?

Initial resuscitation in trauma patients dictates the use of fresh frozen plasma in addition to packed red blood cells. For patients arriving in extremis who require immediate transfusion, blood typing to determine ABO group often is not...

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