Your BLS engine company is dispatched to a “difficulty breathing” call and your ALS rescue is still in the process of delivering their previous patient to the hospital. Dispatch is sending the next closest rescue, but the responding unit has just notified you that they are held up by a train. You arrive on scene, grab your O2 bag and jump kit and head inside. You and your fellow EMTs are on your own, at least for the next several minutes. You had better be prepared to assess and initiate treatment for a patient in respiratory distress!