The aim of study is to compare clinical and biochemical effect of three different transfusion strategies among patients with major hemorrhage requiring prehospital transfusion. A) Present prehospital standard treatment including a mixture of plasma and Red blood cell transfusion (RBC) transfusion B) Red blood cell transfusion (RBC) only C) Plasma transfusion only Hypothesis: 1. Transfusion strategy including a mixture of RBC and plasma is superior as compared with only plasma or only RBC strategy in terms of initial treatment of circulatory shock (expressed as base deficit). 2. Endothelial function and ability of clot formation is preserved to a greater extent in patients receiving plasma.
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Base deficit
Timeframe: At hospital arrival (with in 1 hour)