Carvallo sign refers to which auscultatory finding?

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Prepare for the Rosh Internal Medicine Exam with quizzes, flashcards, and multiple-choice questions, complete with hints and explanations. Get ready to excel on your exam!

Multiple Choice

Carvallo sign refers to which auscultatory finding?

Explanation:
Carvallo sign is the inspiratory augmentation of a right‑sided murmur. When you inhale, intrathoracic pressure drops and venous return to the right heart rises. If the murmur originates from a right‑sided lesion, such as tricuspid regurgitation, the increased right‑sided volume makes the regurgitant flow louder. This contrasts with most left‑sided murmurs, which do not reliably louder with inspiration. So the finding described is a murmur that increases with inspiration, as seen in right‑sided lesions like tricuspid regurgitation.

Carvallo sign is the inspiratory augmentation of a right‑sided murmur. When you inhale, intrathoracic pressure drops and venous return to the right heart rises. If the murmur originates from a right‑sided lesion, such as tricuspid regurgitation, the increased right‑sided volume makes the regurgitant flow louder. This contrasts with most left‑sided murmurs, which do not reliably louder with inspiration. So the finding described is a murmur that increases with inspiration, as seen in right‑sided lesions like tricuspid regurgitation.

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