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: Medicine
[{'content': 'Best indicator for beneficial effect of atropine in a patient with organophosphorous poisoning is: March 2012 \nSelect and explain. \nA. Hea rate, B. Pupil, C. Blood pressure, D. Ventilation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans: A i.e. Hea rate In organophosphate poisoning, atropine should be administered in doses of 0.6-2 mg i.v., repeated every 10-25 minutes until secretions are controlled, the skin is dr./ and there is sinus tachycardia.', 'role': 'assistant'}]