Abstract: Objective To evaluate the effect of the adding two approaches for increasing case finding for smear positive cases in the 4th Nationwide TB Survey.Methods To analye the examine Results of the actual investigation population.Results The 4th TB survey detected more 11.8% smear positive cases for the adding two approaches.44.7% attributed to the approach of TB symptomatic received smear examination directly,17% attributed to the approach of the adding the 3rd sputum specimens for examination.Among the adding detected smear positive cases,83% was TB symptomatic and 17% was non TB symptomatic.Conclusion TB symptomatic is the major objects for case finding.

Key words: Tuberculosis,pulmonary/prevention and control, Case finding