The review of the current position of pulmonary function test techniques, provocation and broncholitics tests. History, physical examination and dynamic pulmonary function check of patients with bronchial obstruction symptoms may clear differentiate asthma and chronic obstructive pulmonary diseases in the latent stage. The methods of dynamic asthma management and the control of therapy efficiency with the use of spirometry are submitted. In addition, the review contains new original methods of examining patients with aspirin exacerbated respiratory diseases.