4 doctors weighed in:
How reliable is the methacholine challenge test for asthma?
4 doctors weighed in

Dr. Sue Ferranti
Internal Medicine
3 doctors agree
In brief: Quite...
It is quite reliable for the diagnosis of asthma but other disorders can also yield a positive test.
Therefore, your doctor needs to diagnose a positive test as asthma based on the clinical circumstances of the individual patient.

In brief: Quite...
It is quite reliable for the diagnosis of asthma but other disorders can also yield a positive test.
Therefore, your doctor needs to diagnose a positive test as asthma based on the clinical circumstances of the individual patient.
Dr. Sue Ferranti
Dr. Sue Ferranti
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