DiagnosisGV is a 61-year-old man who presents to the emergency department with extreme respiratory distress of recent onset. He is diaphoretic and using accessory muscles to breathe. Temperature 98.9o F. SpO2 on room air 78%. He has an occasional cough productive of thin foamy secretions. Use the Auscultation and Blood Pressure tabs to capture heart rate, blood pressure and lung sounds.
The patient is placed on a nonrebreathing mask. A stat portable chest film reveals a grossly enlarged left ventricle with increased vascular markings in both bases. Venous blood is drawn for analysis, and it is discovered that his BNP is 550.
Which of the following is the most likely diagnosis?