Methacholine Challenge experience for asthma diagnosis (reddthat.com)

submitted 1 year ago by Vanth@reddthat.com to c/asklemmy@lemmy.ml

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Have you had one? If so, did the medical professional conducting the challenge stay with you the whole time?

I had one years ago. The person administering the challenge put me in a glass chamber, explained the amount of methacholine would increase until it induced an asthma attack and that how much methacholine it took would determine whether I have asthma or not, then left the room for 10-15 minutes. Looking back now, it seems wild that one would leave when trying to give a person an asthma account. What if I had asthma and was stuck without help for 10+ minutes?

Curious what others have experienced, whether they were left to deal with a possible asthma attack alone or if they were monitored?

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[-] Vanth@reddthat.com 3 points 1 year ago

I don't really remember why I had to do this specific diagnosis tool. I was pretty young. I remember having trouble breathing at times. I remember I also had to do a ton of the allergy tests where they prick your back with needles and swab with potential allergens and check for a reaction. Whatever breathing problems I was having must not have been as obviously asthma.

It appears to still be in use as a diagnosis tool, https://www.lung.org/lung-health-diseases/lung-procedures-and-tests/methacholine-challenge-test

Reading the "risks" section, I suspect the person who administered my test was breaking protocol when they left me alone.

this post was submitted on 29 Aug 2025

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