Height and the GLFI FVC, FEV1 and FEV1/FVC ratio
Although the authors of the Global Lung Function Initiative (GLFI) study acknowledge the effect of height on their reference equations the range and distribution of heights in its study populations…
Month June 2013
PETCO2 during exercise, a quick diagnostic indicator
I was reviewing a cardiopulmonary exercise test (CPET) recently. The test was part of a pre-op workup for a patient with lung cancer who also had a diagnosis of COPD. I had looked at the spirometry…
GLFI and the FVC, FEV1 and FEV1/FVC Ratio
The Global Lung Function Initiative (GLFI) was established by the European Respiratory Society in 2008 with the goal of establishing a truly worldwide set of reference equations for spirometry. Its…
The difficulties in reporting multiple spirometry post efforts.
It’s always fascinating how a simple problem can blossom into something much more complicated. Ninety-five percent of the time when we need to report post test results for spirometry they are…
The origin of FEV1 and the FEV1/FVC ratio
Over forty years ago when I started to learn about pulmonary function testing I was taught about the nuts and bolts of the tests, not where the tests came from or how they came into existence. Spir…