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  1. FEV0.75 – PFTBlog

    Mar 14, 2016 · These measurements were in somewhat common use for the first decades of modern spirometry. They have since mostly passed into disuse and have largely been …

  2. Comments on: Top 10 spirometry errors and mistakes

    From my own experience I can say that it does. A number of years back I had a very bad case of the flu and was out for several days. Even though I was feeling better when I came back my …

  3. Collins Helium Analog Analyzer, front, circa 1968 | PFT History

    Jul 15, 2017 · Taken from a product photo, undated but likely from about 1968. This analyzer was used on the Collins 13.5 Liter Respirometer so that both spirometry and lung volumes could be …