This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Health Programmes in India, Subject name: Social & Preventive Medicine
[{'content': 'Minimum number of sputums require to confirm diagnosis TB according to RNTCP guidelines: \nSelect and explain. \nA. One, B. Two, C. Three, D. Four', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. b. TwoAFB SPUTUMS SMEARS (SS) FOR DIAGNOSIS OF CASE OF TB (NEW GUIDELINES)TB suspect A person with productive cough >2 weeks with or without hemoptysis, fever for >2 weeks, chest pain, weight loss, night sweats, and loss of appetite is subjected to 2 SS examinationsNumber of specimens required for diagnosis of smear positive pulmonary Tuberculosis: TwoChances of detecting smear positive cases:With 1 sample: 80%With 2 sample: 93%', 'role': 'assistant'}]