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: Surgery
[{'content': 'Following is the most impoant factor in the management of shock - \nSelect and explain. \nA. Blood pressure, B. Cardiac output, C. CVP to 8 cm of water, D. Deficiency of effective circulation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is \'d\' i.e., Deficiency of effective circulation "Shock is defined as inadequate perfusion to maintain normal organ function. Thus the goal in the treatment of shock is restoration of adequate organ perfusion and tissue oxygeneration"', 'role': 'assistant'}]