Spirometry testing in the afternoon vs ... with patients tested in the afternoon 32% less likely to have a positive bronchodilator response compared to those tested in the morning.

The criteria for the diagnosis of COPD is a post-bronchodilator FEV1/FVC ratio of < 70% (absolute value). Spirometry technique Spirometric patterns Baseline spirometry: the nurse responsible for ...

When spirometry is unavailable, physicians can use the St. George’s Respiratory Questionnaire score plus peak expiratory flow ...

The researchers found that the odds of a positive bronchodilator response decreased by 8 percent ... the need to document the ...