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How many rounds of the methacholine challenge does it take to rule out asthma?
I was given a methacholine challenge and after two rounds the doctor quit saying I did not have asthma. I understand that there are 6 rounds used in the test. I continue to have breathing problems and some doctors say it might be asthma - other docs say no asthma? How hard is asthma to diagnose?
2 Answers
- Anonymous1 decade agoFavorite Answer
The diagnosis by this methacholine test is very sensitive and specific. The diagnosis in an a non asthmatic is made very early in the test.