60-Year-Old Man With Acute-Onset Exertional Dyspnea

A 60-year-old man presented to the emergency department following acute-onset dyspnea that occurred while chasing his dogs outdoors in the winter. After spending several hours outside with his dogs, one of the dogs escaped into the woods. He began to chase the dog when he became short of breath and had to stop. He had associated nausea, light-headedness, and diaphoresis but no chest discomfort or syncope. These symptoms prompted him to sit down outdoors to catch his breath before attempting to return to his vehicle.
Source: Mayo Clinic Proceedings - Category: Internal Medicine Authors: Tags: Residents ’ clinic Source Type: research