Spirometry,I have never been advised by the respiratory nurse or doctor whether or not you should be fully medicated or not before the test. The reason I ask is that I have just had my annual review and to my surprise my FEV1 has improved from 36 percent predicted to 43 percent predicted! The only reason I can think that this may have happened is that the test was earlier than usual and my morning medications ( 4 sprays ,10 inhalations)were a littlle later than usual. Later that day on my own reading they had returned to the lower level.
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