<prompt> As per RNTCP guidelines first do in TB suspect case ?Chest X-raySputum cultureSputum microscopySta sho-course chemotherapy  <response>: Ans. is c i.e., Sputum microscopy Treatment stratgics in RNTCP Under the RNTCP active case finding is not prusued. Case finding is passive. Patients presenting thremselves with symptoms suspicious of tuberculosis are screened through 2 sputum smear examination. Sputum microscopic examination is done in designated RNTCP microscopy centres. It is essential to examine 2 sputum specimens of each patient before a conclusive diagnosis can be made. If only 1 sputum smear is positive, chest x-ray helps in diagnosis. Once the diagnosis is confirmed, treatment is staed according to DOTS Directly observed therapy sho term. Patient are expected to collect drugs once a month not daily on fixed dates from the nearest treatment centre. 