Spirometry results will be considered within the normal range if FEV1/FVC > 70% (absolute value) and FVC and FEV1 > 80% of the predicted values. The pattern is classified as obstructive if FEV1 ...

Abstract: Preserved ratio impaired spirometry (PRISm) is a pulmonary function pattern characterized by ... PRISm is considered a form of “Pre-Chronic Obstructive Pulmonary Disease (Pre-COPD ...

Spirometry is the only recognized method of definitively diagnosing chronic obstructive pulmonary disease (COPD). 1 It also gives patients and physicians a reliable way of tracking the progression ...

To diagnose chronic obstructive pulmonary disease (COPD), doctors typically use spirometry to measure your lung function. They usually also perform other tests to monitor the damage to your lungs.

Background: Studies indicate that not all physicians in clinical practice use spirometry routinely in the diagnosis of COPD. Understanding the patterns of spirometry use across geographic regions ...