A 35-year-old woman arrives at the office for a check-up following a recent hospitalization. The patient arrived at the ER with a fever and malaise and was diagnosed with infective endocarditis. She was on antibiotics for a long time, and her last dosage was 5 days ago. She no longer has a fever or shortness of breath and has resumed her normal activities. There are no other medical issues with the patient. The blood pressure is 128/72 mm Hg, and the pulse rate is 78 beats per minute. The phonocardiogram below depicts auscultatory results obtained at the left sternal boundary. Which of the following is the most likely cause of the murmur depicted above?

Question

A 35-year-old woman arrives at the office for a check-up following a recent hospitalization. The patient arrived at the ER with a fever and malaise and was diagnosed with infective endocarditis. She was on antibiotics for a long time, and her last dosage was 5 days ago. She no longer has a fever or shortness of breath and has resumed her normal activities. There are no other medical issues with the patient. The blood pressure is 128/72 mm Hg, and the pulse rate is 78 beats per minute. The phonocardiogram below depicts auscultatory results obtained at the left sternal boundary.  Which of the following is the most likely cause of the murmur depicted above?

Quizplus · Accepted Answer

Eductional Objective: A holosystolic murmur that becomes more intense on inspiration is most likely tricuspid regurgitation. Other holosystolic murmurs (due to mitral regurgitation or a ventricular septal defect) do not often intensify on inspiration.

A 35-Year-Old Woman Arrives at the Office for a Check-Up