What you are asking about is a Guest Assistance Card (we call it a GAC to avoid typing so much).
As Talking Hands mentioned, GACs are given based on
needs, not diagnosis. Even if they were given on diagnosis, asthma is not a diagnosis that always causes any problems - many athletes have asthma (in fact, especially many swimmers and skaters get into sports to help their asthma), so just having it does not mean the person has a disability that requires any accomidation.
Also, the GAC doesn't act as a fastpass.
it says right on the GAC that it is "not meant to shorten or eliminate waits in line" (like a fastpass). It's not a pass, it is a
tool to let CMs know what special accomidation is needed for someone with invisible disabilities. Because the accomidations are based on
need, there is not one specific GAC. What the GAC says is different, based on the needs of the person the GAC is for.
If she has endurance needs (like can't walk long distances), it is recommended by Disney that people with endurance needs consider a wheelchair or
ecv because the amount of time/distance spent waiting in lines is much smaller than the time spent waiting in lines.
Her best net would be to use Fastpass *** much as possible. Also, in general, the earlier you can get to the park, the quieter it will be and the more you will be able to see without waiting.
* jcarboski
. We have been blessed to have the GAC extended to us on previous trips for other health reasons - I have a child with extensive medical issues. It never occured to me that there was a use for the GAP for this issue.
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but yes, sometimes I do get a strange reaction. I think that contributing to the trigger is my anxiety that it will trigger an attack KWIM? Since we moved to SC 6 years ago, it's been more common for my asthma to flare up d/t this trigger, and I'm slowly learning how to deal with it more effectively. I have a feeling that hot as the SC sun is, I am looking at a whole different monster with that Florida sun! 
