Free IBHRE Cardiac Devices Questions and Answers

Question 1

Which of the following is the primary function of a pacemaker?

Accepted Answer

To regulate slow heart rates by delivering electrical impulses to the heart

Answer

To defibrillate the heart during cardiac arrest

Answer

To monitor blood pressure continuously

Answer

To perform electrophysiology studies

Question 2

What is the main difference between a single-chamber and a dual-chamber pacemaker?

Accepted Answer

A single-chamber pacemaker has one lead, typically placed in the right atrium or ventricle,
while a dual-chamber pacemaker has two leads, one in the atrium and one in the ventricle.

Answer

A single-chamber pacemaker is used only in children, while a dual-chamber pacemaker is used in adults.

Answer

A dual-chamber pacemaker is smaller than a single-chamber pacemaker.

Answer

A single-chamber pacemaker requires a defibrillator, while a dual-chamber pacemaker does not.

Question 3

Which of the following devices is used to treat both bradycardia and tachycardia?

Accepted Answer

Implantable Cardioverter Defibrillator (ICD)

Answer

Pacemaker

Answer

External defibrillator

Answer

Cardiac monitor

Question 4

In patients with heart failure, what is the primary purpose of Cardiac Resynchronization Therapy (CRT)?

Accepted Answer

To synchronize the contractions of the left and right ventricles, improving cardiac output

Answer

To increase heart rate

Answer

To monitor arrhythmias without intervention

Answer

To provide oxygen therapy

Question 5

Which component of a pacemaker or ICD is responsible for detecting the heart's intrinsic electrical activity?

Accepted Answer

The lead(s)

Answer

The pulse generator

Answer

The battery

Answer

The case