simple verbal intervention with figure of lung and upper respiratory tract will be helpful to adequately collecting sputum.

and in the acceptable specimen based on Gram stain, positivity for AFB stain and culture rate will be higher.

suspicious patients for pulmonary tuberculosis are randomized to control or education group. patients in education group will be educated with the brochure that contains figure of lung/upper respiratory tract and methods of collecting sputum.

Inclusion Criteria:

• age > 18 years
• 2009.7~2010.7 patients with suspicious pulmonary tuberculosis who visited Boramae Hospital

Exclusion Criteria:

• on medication for tuberculosis
• patients who medicated with fluoroquinolone within 1month
• patients without consciousness or patients who cannot expectorate sputum
• hemoptysis over 50cc per day
• patients who don't consent on the study