Step 1 - Cardiology Questions

USMLE / COMLEX - Step 1 > Cardiovascular System > USMLE/COMLEX 1 - Prep Questions

Q. A 54-year-old Indian man comes to the clinic for his regular follow-up. The patient immigrated to the United States five months ago. His past medical history is unknown. The patient's vital signs are BP: 136/96 mmHg, HR: 75 bpm regular, respiratory rate: 15/min, temperature: 36.9 degrees Celsius. Lung auscultation reveals no abnormalities. Cardiac auscultation reveals a double second heart sound during inspiration. The patient's neck veins are not congested. Which of the following is the cause of the findings in this patient's clinical examination?

Increase in the pulmonary pressure
Thickening and scarring of mitral valve
Rapid filling of a dilated ventricle
Inspiratory increase of the venous return
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