ECG/EKG

Question 1 of 15

1

The action potential propagates as a wave of depolarization through the conduction system myocardium. This wave is the electrical signal that triggers myocardial contraction.

Select one of the following:

True
False

Explanation

Question 2 of 15

1

Which of the following is FALSE regarding electrocardiography?

Select one of the following:

It provides information about cardiac size (hypertrophy) and the mean vector (direction) of ventricular or atrial activation (mean electrical axis-MEA)
Is indicated when the heart rate is too high, too slow, or the rhythm is inappropriately irregular
A wave of depolarization directed towards the positive electrode of a lead results in a positive deflection on the EKG
The normal heart depolarizes from left to right, cranial to caudal, and dorsal to ventral

Explanation

Question 3 of 15

1

Which of the following are correctly paired? Check all that apply.

Select one or more of the following:

Atrial depolarization- P wave
Atrial depolarization- QRS complex
Atrial depolarization- T wave
Ventricular depolarization- QRS complex
Ventricular depolarization- P wave
Ventricular depolarization- T wave
Ventricular repolarization- T wave
Ventricular repolarization- QRS complex
Ventricular repolarization- P wave

Explanation

Question 4 of 15

1

MEA (mean electrical axis) is the dominant direction of atrial activation.

Select one of the following:

True
False

Explanation

Question 5 of 15

1

What is the origin of a narrow QRS?

Select one of the following:

Supraventricular
The ventricles
Intraventricular conduction delay

Explanation

Question 6 of 15

1

Which of the following is FALSE regarding arrhythmias?

Select one of the following:

Develop when the conduction system prevents initiation or propagation of the wave front
They are clinically important because they can be responsible for clinical signs including syncope, low cardiac output, and sudden cardiac death
Tachyarrhythmias develop with high vagal tone
Bradyarrhythmias develop when disease of the conduction system slows the rate of depolarization or "blocks" conduction

Explanation

Question 7 of 15

1

What type of arrhythmia does this image represent? Note: this is on 25 mm/sec paper.

Select one of the following:

Sinus arrhythmia
Sinus tachycardia
Sinus bradycardia
Sinus arrest

Explanation

Question 8 of 15

1

What does this image demonstrate?

Select one of the following:

Supreventricular Tachycardia (SVT)
Supraventricular Tachyarrhythmia (SVTA)
Sinus Tachycardia
Atrial fibrillation

Explanation

Question 9 of 15

1

What does this image depict?

Select one of the following:

Atrial fibrillation
Supraventricular tachyarrhythmia
Supraventricular tachycardia

Explanation

Question 10 of 15

1

What is this?

Select one of the following:

Ventricular fibrillation
Ventricular tachycardia
Atrial fibrillation
Sinus arrhythmia

Explanation

Question 11 of 15

1

How are AV blocks resolved?

Select one of the following:

They aren't, the patient just lives with it
Administration of atropine
Exercise
They resolve on their own

Explanation

Question 12 of 15

1

Which of the following is CORRECT?

Select one of the following:

1st degree AV block: PR prolongation
2nd degree AV block: complete failure of AV conduction
3rd degree AV block: intermittent failure of AV conduction
1st degree AV block: complete failure of AV conduction
2nd degree AV block: intermittent failure of AV conduction
3rd degree AV block: PR prolongation
1st degree AV block: PR prolongation
2nd degree AV block: intermittent failure of AV conduction
3rd degree AV block: complete failure of AV conduciton
1st degree AV block: complete failure of AV conduction
2nd degree AV block: PR prolongation
3rd degree AV block: intermittent failure of AV conduction

Explanation

Question 13 of 15

1

Which AV block is this?

Select one of the following:

1st degree
2nd degree
3rd degree

Explanation

Question 14 of 15

1

Which AV Block is this?

Select one of the following:

1st degree
2nd degree
3rd degree

Explanation

Question 15 of 15

1

What is going on in this EKG?

Select one of the following:

Sick sinus syndrome
Hyperkalemic rhythm
1st degree AV block
Atrial fibrillation

	Created by karahm over 10 years ago

Cardiorespiratory Quiz on ECG/EKG, created by karahm on 02/03/2014.

Question 1 of 15

The action potential propagates as a wave of depolarization through the conduction system myocardium. This wave is the electrical signal that triggers myocardial contraction.

Select one of the following:

Explanation

Question 2 of 15

Which of the following is FALSE regarding electrocardiography?

Select one of the following:

Explanation

Question 3 of 15

Which of the following are correctly paired? Check all that apply.

Select one or more of the following:

Explanation

Question 4 of 15

MEA (mean electrical axis) is the dominant direction of atrial activation.

Select one of the following:

Explanation

Question 5 of 15

What is the origin of a narrow QRS?

Select one of the following:

Explanation

Question 6 of 15

Which of the following is FALSE regarding arrhythmias?

Select one of the following:

Explanation

Question 7 of 15

What type of arrhythmia does this image represent? Note: this is on 25 mm/sec paper.

Select one of the following:

Explanation

Question 8 of 15

What does this image demonstrate?

Select one of the following:

Explanation

Question 9 of 15

What does this image depict?

Select one of the following:

Explanation

Question 10 of 15

What is this?

Select one of the following:

Explanation

Question 11 of 15

How are AV blocks resolved?

Select one of the following:

Explanation

Question 12 of 15

Which of the following is CORRECT?

Select one of the following:

Explanation

Question 13 of 15

Which AV block is this?

Select one of the following:

Explanation

Question 14 of 15

Which AV Block is this?

Select one of the following:

Explanation

Question 15 of 15

What is going on in this EKG?

Select one of the following:

Explanation