Histamine challenge test: Hi all, I'm... - Asthma Community ...

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Histamine challenge test

Podday profile image
10 Replies

Hi all, I'm new on here and I was wondering if anyour else has had a negative result on this test but are still diagnosed with asthma? Thanks :)

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Podday profile image
Podday
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10 Replies
Emmaleigh profile image
Emmaleigh

Hi

I have had a negative histamine challenge last year but am still treated for asthma at present My skin prick tests were positive for multiple allargies.

lejaya profile image
lejaya

Mine was negative to this was many years ago though and my cons just told me that my asthma wasn't very active at that time

My wife has had asthma since childhood. She didn't respond to the test, and then her doctor diagnosed her as not having asthma. This made it more difficult to get the treatments that she needed for a while until she found a doctor that knew how unreliable the test is. Her test was the methyl choline challenge.

jenbright1 profile image
jenbright1

My Dr. wanted me to do a Methacholine test, but he said in preparation for it I needed to stop taking all my medication for 7 days. I didn't think I could live 7 days without my medication. He wouldn't listen. I changed Drs. The new Dr. said even if I tested negative for the test, she wouldn't believe it.

Podday profile image
Podday

Thanks all. My doctor wants me to come off all my (many) Meds as he thinks that it's vcd only. But that makes me pretty nervous! Been treated as a severe asthmatic for over 20 years. Don't trust tests that much! Also does anyone else get pain in their lungs when they're asthma is bad? It's good to hear of other people's experiences thank you :)

in reply toPodday

Glad to know it's not just me! Hope you are ok. I'm in a very similar position

fallon12 profile image
fallon12

Hi podday, I have had a negative result but have severe asthma. My consultant says it happens. My doctor things air pollution is my biggest problem but I cant avoid going out. I wish you well x

Podday profile image
Podday in reply tofallon12

Hi thanks for sharing, I'll tell my consultant when I see him next :)

Anna456 profile image
Anna456

Do you know if this is the same as a RAST test?

Podday profile image
Podday

Hi no its not the same as the RAST blood tests. For this one you are given increasing doses of histamine or methoclorine to inhale and they keep doing spirometry tests to see how your lungs cope. Hope that helps

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