This was a single-center, prospective study. Patients with COPD were included if their post-bronchodilator forced expiratory volume in 1 s (FEV 1)/forced vital capacity ratio was <0.7 and FEV 1 ...

The main method of diagnosing COPD has been a spirometry test, which measures lung function through the quantity of air that can be inhaled and exhaled, researchers said. Some hospitals now also ...

A pulmonary function test (PFT), or lung function test ... It can also be done via a nitrogen washout method, which doesn't involve the clear box. Plethysmography is more accurate, but some ...

A new method of scanning lungs is able to show in real time how air moves in and out of the lungs as people take a breath in patients with asthma, chronic obstructive pulmonary disease (COPD), and ...

Methods: Thirteen passengers (seven female passengers) with COPD (mean [± SD], FEV 1 /FVC ... The HIT and a 6-min walk test were performed postflight. The in-flight oxygenation response was ...