FCA(SA) Final Practice Questions - Fellowship Of The College Of Anaesthetists Of South Africa Final Examination Exam

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An intra-aortic balloon pump (IABP) is placed for cardiogenic shock. During 1:1 counterpulsation, the balloon should inflate during which phase of the cardiac cycle?

Early systole immediately after the R wave Diastole, triggered after aortic valve closure (dicrotic notch) Late diastole just before the P wave Throughout systole to augment forward flow

Correct Answer:

Diastole, triggered after aortic valve closure (dicrotic notch)

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