This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pathology
[{'content': 'Obstructive shock is due to - \nSelect and explain. \nA. Mechanical impediment to blood flow, B. Cardiac pump failure, C. Peripheral pooling of blood, D. Hypovolemia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Obstructive shock is a form of shock associated with physical obstruction of the great vessels or the hea itself.Pulmonary embolism and cardiac tamponade are considered forms of obstructive shock. Obstructive shock come under cardiogenic shock Robbins 9 th edition page no. 94', 'role': 'assistant'}]