1. Adult Female With Dyspnea
Michael E. Abboud, MD, Sarah E. Frasure, MD 
Annals of Emergency Medicine 
Volume 67, Issue 3, (March 2016)
DOI: /j.annemergmed
Copyright © 2016 American College of Emergency Physicians Terms and Conditions

2. Figure 1
Lung ultrasonography with M-mode, demonstrating the “stratosphere” (also known as “barcode”) sign.
Annals of Emergency Medicine  , DOI: ( /j.annemergmed )
Copyright © 2016 American College of Emergency Physicians Terms and Conditions

3. Figure 2
Apical 4-chamber cardiac view demonstrates right ventricular free wall collapse (arrow) during diastole (note the open mitral valve [asterisk]).
Annals of Emergency Medicine  , DOI: ( /j.annemergmed )
Copyright © 2016 American College of Emergency Physicians Terms and Conditions

4. Figure 3
Chest radiograph demonstrating air between the parietal and visceral pleura (asterisks) and within the pericardium (arrow).
Annals of Emergency Medicine  , DOI: ( /j.annemergmed )
Copyright © 2016 American College of Emergency Physicians Terms and Conditions