Persantine stress test with thalium

I am a 54 year old woman, who has had shortness of breath on and off during my life that started on twin pregnancy, which was extreme and caused placental abruption,at 29 weeks gestation. I just recently for first time, had a persantine stress test, which ended suddenly, with shortness of breath.  But the cardiologist reversed the persantine at 100bpm. and left the room. Four minutes later I had anaphylaxis,closing of airway and collapsed onto stretcher for more epinephrine and ventolin and aminophlyine to counteract it. Two hours later cardiologist said to nurse, he is not a lung doctor...what kind of cardiologist would say that to someone who nearly died?  They were going to take me to ER and cancel whole test which was 5 hours long with thalium and other picutures, and I do not know the results yet...I do not have lung disease, I have reactions to drugs...I did not know what persantine was...thanks for any help you can offer, Lori