Free EKG Certification General Question and Answers

Question 1

By whom was the electrocardiogram created?

Accepted Answer

Willem Einthoven

Answer

Hubert Mann

Answer

Steward

Answer

Wilhelm His

Question 2

Which of the following experiences a depolarization stimulation during a healthy heartbeat?

Accepted Answer

Sinoatrial Node (SA node)

Answer

His bundle

Answer

Atrioventricular Node (AV node)

Answer

Epicardium

Question 3

The P wave stands for what?

Accepted Answer

Depolarization of the atria

Answer

Depolarization of the atria and ventricles

Answer

Represents the repolarization of the ventricles

Answer

Depolarization of the ventricles

Question 4

Which one of these is not visible on an electrocardiogram?

Accepted Answer

Presence of asymptomatic blockages in the atria of the Heart

Answer

The function of implanted Pacemakers

Answer

The size and position of the Heart chambers

Answer

The rate and rhythm of Heartbeats

Question 5

Which of the following describes depolarization of the ventricular muscle?

Accepted Answer

QRS complex

Answer

PR interval

Answer

T wave

Answer

P wave

Question 6

What does the T wave in an ECG stand for?

Accepted Answer

Ventricular repolarization

Answer

Joint diastole

Answer

Atrial systole

Answer

Atrial diastole

Question 7

What starts when the ventricles depolarize?

Accepted Answer

Ventricular systole

Answer

Joint diastole

Answer

Atrial systole

Answer

Atrial diastole

Question 8

Which of the following can be deduced from the number of QRS complexes?

Accepted Answer

Rate of heartbeat

Answer

Stroke volume

Answer

Cardiac output

Answer

Rate of breathing

Question 9

What are the causes of depolarization and repolarization in various heart chambers?

Accepted Answer

Contraction and relaxation

Answer

Contraction and thickening

Answer

Thickening and thinning

Answer

Relaxation and thickening

Question 10

Which of the following ECG waveforms best exemplifies repolarization? 10.

Accepted Answer

T wave

Answer

RS wave

Answer

QRS complex

Answer

P wave