RATIONALE: International guidelines promote the use of post-bronchodilator spirometry values in the definition and severity classification of chronic obstructive pulmonary disease. However ...

A healthcare professional may have you perform the spirometry test again after you use an inhaled medication called a bronchodilator, which helps open the airways. This test may be called a ...

“Patients with mild-to-moderate COPD who have low exercise tolerance are likely to experience poor respiratory health outcomes,” the investigators concluded. “Exercise tolerance may be considered one ...