The nurse is preparing to palpate the apical impulse in a thin patient. In relationship to the cardiac cycle, the nurse will feel the apical impulse at the onset of the:
A) First heart sound, lasting for only half of diastole
B) First heart sound, lasting for only half of systole
C) Second heart sound, lasting for only half of systole
D) Second heart sound, lasting for only half of diastole
Ans: B
Feedback: In many cases, the apical impulse is palpable and is normally felt as a light pulsation, 1 to 2 cm in diameter, at the onset of the first heart sound and lasts for only half of systole.
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