Intraaortic balloon pump is used for:

BHU NO-2019

Medical & Surgical Nursing

Easy

Appeared in: BHU NO-2019

Explanation

The primary goal of an Intra-Aortic Balloon Pump (IABP) is to improve the balance between myocardial oxygen supply and demand.
It achieves this through counterpulsation, where the balloon inflates during diastole.
This inflation displaces blood towards the aortic root, causing an increase in diastolic pressure (diastolic augmentation).
Increased diastolic pressure directly improves blood flow through the coronary arteries, which fill during diastole, thus enhancing oxygen supply to the heart muscle.

Option A: Mitral valvotomy is a procedure to widen a stenotic (narrowed) mitral valve.
Option C: An IABP is not designed to remove blood clots (thrombi).
Option D: The IABP actively works to decrease, not increase, systolic blood pressure.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Hemodynamic effects of Intra-Aortic Balloon Pump (IABP) as background academic context rather than a clinical decision trigger.
Nurses caring for patients with an IABP must perform meticulous assessments, including monitoring hemodynamic parameters (for effective augmentation), checking for signs of limb ischemia in the cannulated leg (e.g., diminished pulses, pallor, pain), and observing for bleeding at the insertion site.
Correct timing of inflation and deflation is critical for patient benefit and safety. Timing errors can be harmful, for instance, late deflation increases afterload, and early inflation can prematurely close the aortic valve.
What if? If a patient with an IABP suddenly develops a weak or absent pulse in the cannulated leg, it could signify acute limb ischemia due to thrombus formation or catheter occlusion. The nurse's immediate action is to perform a full neurovascular assessment (6 P's) of the limb and urgently notify the physician, as this is a medical emergency that could lead to limb loss.

How to Approach the Question

First, identify the core subject of the question: the 'Intra-aortic balloon pump' (IABP).
Recall the primary mechanism of the IABP, which is 'counterpulsation'.
Break down 'counterpulsation' into its two phases: inflation and deflation, and link them to the cardiac cycle (diastole and systole).
Remember that inflation occurs during diastole to increase coronary perfusion, which means diastolic pressure must increase.
Remember that deflation occurs just before systole to decrease the heart's workload (afterload), which means systolic pressure will decrease.
Evaluate the options based on these two key effects. The option stating 'Diastolic increase in blood pressure' directly matches the primary therapeutic goal of IABP inflation.

Concept Tested & Keywords

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