No abstract available. Article truncated after the first page. History of Present Illness: The patient is a 51-year-old woman admitted with a long history of progressive shortness of breath. She has a long history of “heart problems”. She uses supplemental oxygen at 1 LPM by nasal cannula. Past Medical History, Social History and Family History: She also has several comorbidities including renal failure with two renal transplants and a history of relatively recent RSV and CMV pneumonia. She is a life-long nonsmoker. Her family history is noncontributory. Physical Examination: Vital signs: Blood pressure 145/80 mm Hg, heart rate 59 beats/min, respiratory rate 18, T 37.0º C, SpO2 91% of 1 LPM. Lungs: Clear. Heart: Regular rhythm with G 3/6 systolic ejection murmur at the base. Abdomen: unremarkable. Extremities: no edema Which of the following should be performed? 1. Brain naturetic peptide (BNP) 2. Chest x-ray 3. Echocardiogram 4. Electrocardiogram 5. All of the above …