A 6-year-old girl is brought to the GP by her mother who reports that she’s had a “pounding” heartbeat for the past two months. Her history is remarkable for a large ventricular septal defect surgically repaired when she was a neonate. Transthoracic echocardiography shows a left to right movement of blood across a ventricular septal defect that has re-opened. Compared to before the defect re-opened, which of the following sets of parameters best reflects this patient’s new cardiac state?
↑ Left ventricular pressure; ↓ Right ventricular pressure; ↑ Left atrial pressure
↑ Left ventricular pressure; ↓ Right ventricular pressure; ↓ Left atrial pressure
↑ Left ventricular pressure; ↓ Right ventricular pressure; ↔ Left atrial pressure
↓ Left ventricular pressure; ↑ Right ventricular pressure; ↑ Left atrial pressure
↓ Left ventricular pressure; ↑ Right ventricular pressure; ↓ Left atrial pressure
↓ Left ventricular pressure; ↑ Right ventricular pressure; ↔ Left atrial pressure
—
Cut-to-the-chase Answer (0:50):
—
HY USMLE Answer (2:39):
