This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'Which of the following complications is likely to result after several units of blood have been transfered? \nSelect and explain. \nA. Metabolic acidosis, B. Metabolic alkalosis, C. Respiratory alkalosis, D. Respiratory acidosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Massive transfusion is defined as the need to transfere one to two times the patients normal blood volume or >50% of blood volume wihtin 3 hours.\nIn a normal adult, this is equivalent 10-20 units\nMost common abnormality is metabolic alkalosis.\nIt results from the conversion of citrate (present in stored blood) and lactate (accumulated due to hypoperfusion) to bicarbonate.', 'role': 'assistant'}]