My son just completed his MCCT and the results were as follows. He completed the 5 doses of Methacholine and there was insignificant change in his flow/velocity. Good, right? Then, they gave him the albuterol and his flow increased significantly. Bad? The kid is a swimmer and in great shape with no need of meds for 4 years and 10 months. Are we in trouble here? The doc said that perhaps we should repeat the test as he may not have been blowing into the apparatus properly at the beginning. We don't want to redo the test (office is 2 hours away, lost school time, etc) but if we have to we will. Advice?