Spirometry is a standard test that doctors use to determine how well your lungs are functioning. The test works by measuring airflow into and out of your lungs. To take a spirometry test, you sit and ...

Forced expiratory volume in 1 second (FEV1) measures how much air you can forcefully exhale in one second. A low FEV1 suggests a breathing obstruction caused by conditions like chronic obstructive ...

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, ...

The guideline-recommended FEV1:FVC value of less than 0.70 is the optimal cutoff for the diagnosis of clinically significant chronic obstructive pulmonary disease (COPD), researchers say. The study, ...

Good technique is essential when undertaking spirometry tests, and correct interpretation of the results is important to avoid making an incorrect diagnosis. Lung function results are reported as ...

Spirometry test There is significant disparity in the ratios for postbronchodilator FEV1/FEV6 and FEV1/FVC %, and this disparity is very pronounced in women. Disclosure: One study author declared ...

Kath Cooper, SRN, is associate lecturer/short course manager and spirometry module coordinator, Respiratory Education and Training Centre, Aintree, and part-time practice nurse in Cheshire Pat ...