<unk>  (meaning the measuring of breath) is the most common of the Pulmonary Function Tests (PFTs), measuring lung function, specifically the measurement of the amount (volume) and/or speed (flow) of air that can be inhaled and exhaled.<unk>  is an important tool used for generating pneumotachograph to assessing conditions such as asthma, pulmonary  fibrosis, and COPD.
Spirometry
Bronchoscopy
Cough CT
Specific inhalation challenge
Respiratory distress assessment instrument
Plethysmograph
Status asthmaticus CT
Asthma pulmonary function test