<qa>  What is the name of the type of bronchospastic lung disease?2. History of moderate to severe bronchospastic lung disease including moderate to severe asthma F. Known allergy to regadenoson or aminophylline. G. Any patient not deemed medically stable by a physician. F. Known or suspected severe symptomatic aortic stenosis. G. Severe hypertrophic obstructive cardiomyopathy. H. Evidence of severe symptomatic heart failure NYHA Class III or IV at the time of the scan. 