Abstract: Preserved ratio impaired spirometry (PRISm) is a pulmonary function pattern characterized by a forced expiratory volume in one second (FEV1) to forced vital capacity ratio greater than 0.70, ...

In a large US cohort study, pre-pandemic severe obstructive lung function, as measured by spirometry, was linked to more than a twofold increased risk for severe COVID-19. Researchers analyzed the ...

Hypercapnic patients were best separated from normocapnic patients using thresholds for FVC% of 56% predicted and 33% predicted for FEV1%. Hypercapnia in patients with chronic obstructive pulmonary ...

Please provide your email address to receive an email when new articles are posted on . Factors associated with FEV1 included baseline fractional exhaled nitric oxide, response to a characterizing ...