<prompt> Minimum number of sputums require to confirm diagnosis TB according to RNTCP guidelines:OneTwoThreeFour  <response>: Ans. b. TwoAFB SPUTUMS SMEARS SS FOR DIAGNOSIS OF CASE OF TB NEW GUIDELINESTB 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: 80With 2 sample: 93 