31 mm Hg, and pO2 of 58 mm Hg on 100% non-rebreather mask. Bedside echocardiogram demonstrated severe right ventricular (RV) dilation with signs of both RV pressure and volume overload, severe hypokinesis of the RV free wall and the ventricular septum, and good RV apical contraction. There was left ventricular (LV) cavity obliteration with no evidence of wall motion abnormality. Pulmonary artery pressure was estimated to be 50 mmHg (assuming right atrial pressure of 15 mmHg), and a minimal pericardial effusion was seen. A complete blood count, coagulation panel, and basic metabolic panel were normal.