RCIS Intra-Aortic Balloon Pump and Mechanical Circulatory Support

Question 1

The intra-aortic balloon pump (IABP) inflates at which point on the arterial waveform?

Accepted Answer

Dicrotic notch

Answer

QRS complex

Answer

Systolic peak

Answer

T-wave end

Question 2

Which of the following is an absolute contraindication for IABP insertion?

Accepted Answer

Significant aortic regurgitation

Answer

Severe mitral regurgitation

Answer

Moderate aortic stenosis

Answer

Left bundle branch block

Question 3

What is the primary hemodynamic benefit of IABP counterpulsation?

Accepted Answer

Increased coronary perfusion pressure

Answer

Increased heart rate

Answer

Decreased diastolic aortic pressure

Answer

Increased left ventricular preload

Question 4

The optimal tip position of an IABP catheter on chest X-ray is:

Accepted Answer

2 cm distal to the left subclavian artery

Answer

At the aortic valve

Answer

At the level of the renal arteries

Answer

In the descending thoracic aorta at the diaphragm

Question 5

IABP deflation should occur:

Accepted Answer

Just before systole (end diastole)

Answer

At the dicrotic notch

Answer

During mid-diastole

Answer

At the systolic peak

Question 6

Which trigger mode for IABP is preferred when a patient has an irregular cardiac rhythm?

Accepted Answer

Arterial pressure trigger

Answer

ECG R-wave trigger

Answer

Internal asynchronous trigger

Answer

Pacemaker spike trigger

Question 7

A 1:2 IABP assist ratio is used to:

Accepted Answer

Wean the patient off IABP support

Answer

Maximize hemodynamic support in cardiogenic shock

Answer

Treat ventricular fibrillation

Answer

Increase heart rate