Case Presentation: A 74-year-old male with a history of coronary artery disease and atrial fibrillation presented with shortness of breath, orthopnea and leg edema of 2 weeks duration. He denied any chest pain, palpitations, or lightheadedness. He had no known allergies. On examination, blood pressure was 190/100 mmHg, pulse 82/minute, respiratory rate 28/minute with oxygen [...]