Thanks so much everyone. I'll pass this along and I agree that it's crazy that they don't have anything better and if there isn't anything better that they still use the "results" as a basis for making recommendations as to various treatment options. best all...
I have a good friend with ALS who has mouth, tongue weakness and is concerned that the lung function test results are not valid as she can't "grip" the spirometer with her mouth. Are we right to be concerned?