A man in his 30s came to the emergency department complaining of shortness of breath, especially with exertion. He was very concerned because his breathing problems had become worse over the course of a week, to the point where he could not walk up a set of stairs or a short distance without becoming extremely winded. The man was healthy and his career as a landscaper required him to be physically active. He didn’t have any prior medical history that was alarming to his medical team.
