Which of the following mechanisms is responsible for the augmentation of coronary arterial
blood flow and increased myocardial oxygen supply seen with the intra-aortic balloon
pump?
▪A) The vacuum created in the aorta as a result of balloon deflation
▪
▪B) Diastolic inflation with retrograde perfusion
▪
▪C) Forward flow to the peripheral circulation
▪
▪D) Inflation during systole to augment blood pressure - ANSWER B
The blood volume in the aorta below the level of the balloon is propelled forward toward
the peripheral vascular system, which may enhance renal perfusion.
When an intra-aortic balloon is in place, it is essential for the nurse to frequently assess
▪A) for a pulse deficit.
▪
▪B) peripheral pulses distal to the catheter insertion site.
▪
▪C) bilateral blood pressures.
▪
▪D) coronary artery perfusion. - ANSWER B
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blood flow and increased myocardial oxygen supply seen with the intra-aortic balloon
pump?
▪A) The vacuum created in the aorta as a result of balloon deflation
▪
▪B) Diastolic inflation with retrograde perfusion
▪
▪C) Forward flow to the peripheral circulation
▪
▪D) Inflation during systole to augment blood pressure - ANSWER B
The blood volume in the aorta below the level of the balloon is propelled forward toward
the peripheral vascular system, which may enhance renal perfusion.
When an intra-aortic balloon is in place, it is essential for the nurse to frequently assess
▪A) for a pulse deficit.
▪
▪B) peripheral pulses distal to the catheter insertion site.
▪
▪C) bilateral blood pressures.
▪
▪D) coronary artery perfusion. - ANSWER B
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