A 52 yr old patient presents to the Emergency Department with acute coronary syndrome and cardiogenic shock. He receives 300mg aspirin, 600mg clopidogrel and a tirofiban infusion is initiated. The angiogram shows left main stem occlusion– and he is referred urgently to cardiac surgery. The tirofiban infusion is ceased. On return from theatre, there is 400ml/ hr blood loss for the first 3 hours.
13.1 List 5 causes of early post-operative bleeding in this patient.