A 23-year-old patient enters the emergency room complaining…

A 23-year-old patient enters the emergency room complaining of dyspnea. The RT places the patient on oxygen, per hospital protocol, and begins to interview the patient about her symptoms. She states that she is having difficulty breathing out and chest tightness. Patient has a respiratory rate of 28 breaths/min with a loose productive cough. During auscultation, the RT hears bilateral wheezing in the lungs. What is the most likely cause of the patient’s symptoms?