Which palpation finding is most associated with chamber enlargement?

Which palpation finding is most associated with chamber enlargement?

• A. Heaves and Lifts using flat palm
• B. Thrills with the ball of the hand
• C. RV impulses in the subxiphoid region
• D. S1 and S2 firm pressure on the chest wall

Answer: (A)

When a chamber enlarges, the heart’s outward thrust against the chest wall becomes more pronounced and sustained. The best way to feel that is with the flat of the hand resting over the precordium to detect a heave or lift—a prolonged, vigorous impulse that may push the chest wall outward with each beat and can shift the point of maximal impulse laterally. This reflects ventricular enlargement and/or hypertrophy. In contrast, a thrill is a palpable vibration felt with the ball of the hand and signals turbulent flow from a murmur, often due to valve disease rather than pure chamber enlargement. A palpable RV impulse in the subxiphoid area can indicate right ventricular enlargement but is not the most general sign of chamber enlargement. Heart sounds like S1 and S2 are auscultated rather than palpated as a chest-wall impulse.

When a chamber enlarges, the heart’s outward thrust against the chest wall becomes more pronounced and sustained. The best way to feel that is with the flat of the hand resting over the precordium to detect a heave or lift—a prolonged, vigorous impulse that may push the chest wall outward with each beat and can shift the point of maximal impulse laterally. This reflects ventricular enlargement and/or hypertrophy.

In contrast, a thrill is a palpable vibration felt with the ball of the hand and signals turbulent flow from a murmur, often due to valve disease rather than pure chamber enlargement. A palpable RV impulse in the subxiphoid area can indicate right ventricular enlargement but is not the most general sign of chamber enlargement. Heart sounds like S1 and S2 are auscultated rather than palpated as a chest-wall impulse.