
A 20-year-old patient, T.C., managed in your hospital's asthma clinic has recently been diagnosed with paroxysmal supraventricular tachycardia (SVT). To control his asthma, T.C. uses a fluticasone 250 mcg/salmeterol 50 mcg inhaler (Advair Diskus, GlaxoSmithKline) regularly plus an albuterol inhaler as needed. T.C.'s physician suspects the beta agonists used to control asthma could be a factor in T.C.'s episodes of SVT. He requests a pharmacist consult about how best to deal with the asthma to prevent episodes of heart arrhythmia. What do you suggest?