Electrocardiogram (EKG) Fundamentals and Interpretation Quiz

Explore essential EKG concepts with 13 quiz questions. Understand waves, intervals, leads, and more in electrocardiography.

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What does EKG stand for?

Electrocardiogram

Electronic Keyboard Generator

Energy Kinetic Graph

Elastic Kinematics Gauge

What is the standard paper speed for recording an EKG?

25 mm/s

50 mm/s

75 mm/s

100 mm/s

What is the typical heart rate range for an adult at rest?

60-80 beats per minute

80-100 beats per minute

100-120 beats per minute

120-140 beats per minute

Which part of the heart's electrical conduction system initiates the heartbeat?

Atrioventricular (AV) Node

Sinoatrial (SA) Node

Bundle of His

Purkinje Fibers

In an EKG, what does the P wave represent?

Atrial depolarization

Ventricular depolarization

Ventricular repolarization

Atrial repolarization

Which segment on an EKG represents the time between ventricular depolarization and repolarization?

PR interval

QRS complex

ST segment

T wave

What does the QRS complex represent on an EKG?

Atrial depolarization

Ventricular depolarization

Ventricular repolarization

Atrial repolarization

What is the normal duration of the PR interval on an EKG?

0.08-0.12 seconds

0.12-0.20 seconds

0.20-0.40 seconds

0.40-0.60 seconds

Which EKG lead is often used to monitor the lateral wall of the heart?

Lead I

Lead II

Lead III

Lead V5

#10

What does a prolonged QT interval on an EKG indicate?

Atrial fibrillation

Ventricular fibrillation

Risk of torsades de pointes

Normal heart function

#11

In lead aVR, which part of the heart is mainly represented?

Inferior wall

Lateral wall

Anterior wall

Septal wall

#12

Which lead is often used to assess the inferior wall of the heart on an EKG?

Lead I

Lead II

Lead III

Lead aVF

#13

What does a flattened T wave on an EKG suggest?

Myocardial infarction

Hyperkalemia

Hypokalemia