Question 1

Which of the following is NOT a sign of myocardial irritability?&#10;A)multifocal PVCs&#10;B)Asystole&#10;C)short bursts of Ventricular Tachycardia&#10;D)frequent or increasing PVCs

Accepted Answer

Asystole is the absence of any electrical or mechanical activity in the heart, so it is not a sign of myocardial irritability. The other choices all involve abnormal electrical activity in the heart, which can indicate myocardial irritability.

Question 2

Which of the following is the premier diagnostic feature of Ventricular Fibrillation?&#10;A)rate over 350 bpm&#10;B)no measurable waves or complexes&#10;C)more P waves than QRS complexes&#10;D)P waves unrelated to QRS complexes

Accepted Answer

The premier diagnostic feature of Ventricular Fibrillation is the absence of any recognizable QRS complexes or waves on the ECG tracing.

Question 3

A Premature Ventricular Contraction is an):&#10;A)heart block.&#10;B)single irritable beat.&#10;C)escape mechanism.&#10;D)atrial malfunction.

Accepted Answer

A Premature Ventricular Contraction is a single irritable beat that occurs when the ventricles of the heart contract too early. It is not a heart block, escape mechanism, or atrial malfunction.

Question 4

The rate for an Idioventricular Rhythm is bpm.&#10;A)60- 100&#10;B)40- 60&#10;C)20- 40&#10;D)100- 120

Accepted Answer

Idioventricular rhythm typically has a rate of 20-40 beats per minute, as it originates from the ventricles when the normal conduction system fails to generate impulses.

Question 5

Ventricular Tachycardia that has a rate below 150 is identified as:&#10;A)slow Ventricular Tachycardia.&#10;B)Ventricular Asystole.&#10;C)Ventricular Fibrillation.&#10;D)Ventricular Bradycardia.

Accepted Answer

Ventricular Tachycardia is typically defined as a heart rate of 100 bpm or greater. However, if the rate is below 150 bpm, it is considered to be "slow" compared to the typical range of ventricular tachycardia rates (usually between 150-250 bpm). Therefore, the correct answer is A: slow Ventricular Tachycardia. Ventricular Asystole is absence of ventricular activity, Ventricular Fibrillation is rapid and chaotic ventricular activity, and Ventricular Bradycardia is a slow heart rate in the ventricles.

Question 6

The rhythm that is the result of the total absence of cardiac electrical activity is referred to as:&#10;A)Ventricular Fibrillation.&#10;B)Idioventricular Rhythm.&#10;C)Asystole.&#10;D)Ventricular Tachycardia.

Accepted Answer

Asystole is defined as the total absence of cardiac electrical activity, resulting in a flatline on the ECG. Ventricular fibrillation, idioventricular rhythm, and ventricular tachycardia all involve some level of electrical activity in the heart.

Question 7

Which of the following is NOT true about Ventricular Tachycardia?&#10;A)It is usually regular.&#10;B)It sometimes has P waves.&#10;C)It has a constant PRI.&#10;D)It often looks like a string of connected PVCs.

Accepted Answer

Ventricular tachycardia typically does not have a constant PRI, as there is usually no identifiable P wave. The other statements are true about ventricular tachycardia.

Question 8

Which of the following is NOT caused by irritability?&#10;A)Ventricular Fibrillation&#10;B)Premature Ventricular Complex&#10;C)Idioventricular Rhythm&#10;D)Ventricular Tachycardia

Accepted Answer

Idioventricular rhythm is not caused by irritability but is a backup rhythm that occurs when the heart's primary pacemakers fail. It originates from the ventricles themselves rather than being triggered by external irritability factors.

Question 9

Idioventricular Rhythm can be described as all of the following EXCEPT:&#10;A)an escape rhythm.&#10;B)an agonal rhythm.&#10;C)an irritable rhythm.&#10;D)a lethal rhythm.

Accepted Answer

Idioventricular rhythm is considered an escape rhythm, which occurs when the heart's primary pacemakers fail, and the ventricles themselves initiate impulses to maintain cardiac output. It can also be an agonal rhythm, indicating a dying heart, but it is not classified as an irritable rhythm, which refers to rhythms originating from a focus that is firing more rapidly than normal, often leading to premature contractions.

Question 10

The heart rate for Ventricular Tachycardia is bpm.&#10;A)40- 60&#10;B)100- 150&#10;C)60- 100&#10;D)150- 250

Accepted Answer

Ventricular Tachycardia is a rapid heartbeat originating from the lower chambers of the heart (ventricles), with a heart rate of 150-250 bpm.

Question 11

When an ectopic falls during the vulnerable phase of the cardiac cycle, it is called:&#10;A)escape mechanism.&#10;B)phased ectopic.&#10;C)vulnerability.&#10;D)R on T phenomenon.

Accepted Answer

The answer of When an ectopic falls during the vulnerable...

Question 12

Which of the following is NOT true about multifocal PVCs?&#10;A)They arise from multiple foci.&#10;B)They usually look alike.&#10;C)They indicate increased irritability.&#10;D)They have a variety of configurations.

Accepted Answer

The answer of Which of the following is NOT true...

Question 13

Ventricular Tachycardia is caused by:&#10;A)blocked conduction within the bundle branches.&#10;B)an irritable pacemaker moving between the AV junction and the ventricles.&#10;C)an escape pacemaker within the ventricles.&#10;D)an irritable focus within the ventricles.

Accepted Answer

The answer of Ventricular Tachycardia is caused by:&#10;A)blocked conduction within...

Question 14

The term &#34;agonal&#34; is used to describe a:&#10;A)rapid rhythm.&#10;B)lethal arrhythmia.&#10;C)chronic arrhythmia.&#10;D)painful arrhythmia.

Accepted Answer

The answer of The term &#34;agonal&#34; is used to describe...

Question 15

The PR interval in Ventricular Tachycardia is:&#10;A)greater than 0.12 sec.&#10;B)0.08- 0.12 sec.&#10;C)not measured.&#10;D)less than 0.08 sec.

Accepted Answer

The answer of The PR interval in Ventricular Tachycardia is:&#10;A)greater...

Question 16

The QRS complexes in Ventricular Fibrillation are:&#10;A)not measurable.&#10;B)less than 0.12 sec.&#10;C)wide and uniform.&#10;D)0.12 sec.or greater.

Accepted Answer

The answer of The QRS complexes in Ventricular Fibrillation are:&#10;A)not...

Question 17

PVCs falling in a pattern of every other beat are referred to as:&#10;A)runs of PVCs.&#10;B)bigeminy.&#10;C)repeating PVCs.&#10;D)coupled PVCs.

Accepted Answer

The answer of PVCs falling in a pattern of every...

Question 18

Two PVCs attached together are referred to as:&#10;A)repeating PVCs.&#10;B)a double PVC.&#10;C)bigeminy of PVCs.&#10;D)a couplet.

Accepted Answer

The answer of Two PVCs attached together are referred to...

Question 19

Which of the following is NOT a typical feature of a Premature Ventricular Complex?&#10;A)QRS measuring 0.12 sec or greater&#10;B)T wave in opposite direction from R wave&#10;C)preceded by upward P wave&#10;D)followed by compensatory pause

Accepted Answer

The answer of Which of the following is NOT a...

Question 20

Which of the following is a feature of Asystole?&#10;A)wide, bizarre QRS complexes&#10;B)no measurable waves or complexes&#10;C)fibrillatory waves on the baseline&#10;D)rate 20- 40 bpm

Accepted Answer

The answer of Which of the following is a feature...

Question 21

A compensatory pause is an):&#10;A)delay that causes a PVC.&#10;B)AV conduction defect.&#10;C)delay within atria.&#10;D)delay following a PVC.

Accepted Answer

The answer of A compensatory pause is an):&#10;A)delay that causes...

Question 22

A basic rule for ventricular arrhythmias is that the QRS will be:&#10;A)inverted.&#10;B)variable.&#10;C)0.12 sec or greater.&#10;D)less than 0.12 sec.

Accepted Answer

The answer of A basic rule for ventricular arrhythmias is...

Question 23

Which of the following is NOT a lethal arrhythmia?&#10;A)Premature Ventricular Complexes&#10;B)Ventricular Tachycardia&#10;C)Idioventricular Rhythm&#10;D)Ventricular Fibrillation

Accepted Answer

The answer of Which of the following is NOT a...

Question 24

When PVCs appear in a pattern where every third beat is a PVC, the pattern is called:&#10;A)trigeminy.&#10;B)runs of PVCs.&#10;C)tricyclic PVCs..&#10;D)triplets.

Accepted Answer

The answer of When PVCs appear in a pattern where...

Question 25

Which of the following types of PVCs is NOT considered a particular warning of increased myocardial irritability?&#10;A)couplets and runs&#10;B)bigeminy, trigeminy, or quadrigeminy&#10;C)interpolation&#10;D)R on T phenomenon

Accepted Answer

The answer of Which of the following types of PVCs...

Deck 8: Ventricular Rhythms