In pulmonary embolism (PE), right ventricular (RV) strain on transthoracic echocardiography increases the likelihood of shock and mortality. One study showed among patients with PE and normal blood pressure, 10% of those with RV strain on echocardiogram developed shock, and 5% died in hospital. Those without RV strain maintained their blood pressure and survived (but important to note, so did 90% of those