Blood transfusions are vital for patients in a critical condition to maintain tissue perfusion and oxygenation. Whole blood transfusions are commonly carried out in general practice in emergency situations, and [[Blood Products|blood products]] are also becoming more widely available. | Blood transfusions are vital for patients in a critical condition to maintain tissue perfusion and oxygenation. Whole blood transfusions are commonly carried out in general practice in emergency situations, and [[Blood Products|blood products]] are also becoming more widely available. |