Basics of Electrocardiography (ECG) Quiz
Test your understanding of Electrocardiography with these 14 questions covering ECG interpretation, leads, intervals, and abnormalities.
#1
What does ECG stand for?
Electrocardiogram
Electrochemical generator
Electronic cardiovascular graph
Electrocardiac grid
#2
Which part of the heart generates electrical impulses?
Aorta
Pulmonary artery
Sinoatrial (SA) node
Atrioventricular (AV) node
#3
What does the P-wave represent in an ECG?
Atrial depolarization
Ventricular depolarization
Atrial repolarization
Ventricular repolarization
#4
Which lead is commonly used to obtain a 12-lead ECG?
Lead I
Lead II
Lead III
Lead aVR
#5
Which wave represents ventricular repolarization in an ECG?
P-wave
QRS complex
T-wave
U-wave
#6
What does the PR interval measure in an ECG?
Atrial depolarization time
Ventricular depolarization time
Atrioventricular (AV) conduction time
Ventricular repolarization time
#7
What is the normal duration range of the QRS complex?
0.06 - 0.10 seconds
0.10 - 0.20 seconds
0.20 - 0.40 seconds
0.40 - 0.60 seconds
#8
Which lead is considered the 'ground' lead in a standard 12-lead ECG?
Lead I
Lead II
Lead III
Lead aVR
#9
What does QT interval represent in an ECG?
Atrial depolarization time
Ventricular depolarization time
Atrial repolarization time
Ventricular repolarization time
#10
What is the most common cause of a peaked T-wave in an ECG?
Hyperkalemia
Hypokalemia
Hypercalcemia
Hypocalcemia
#11
What does the ST segment represent in an ECG?
Atrial depolarization time
Ventricular depolarization time
Atrioventricular (AV) conduction time
Early ventricular repolarization
#12
What does the term 'isoelectric line' refer to in an ECG?
Baseline of the ECG with no electrical activity
Abnormal rhythm observed in certain heart conditions
Line indicating ventricular depolarization
Line indicating atrial repolarization
#13
Which electrolyte imbalance may cause a prolonged QT interval on an ECG?
Hypercalcemia
Hypomagnesemia
Hyperkalemia
Hypophosphatemia
#14
What does a negative deflection in lead II typically represent in an ECG?
Atrial depolarization
Ventricular depolarization
Atrial repolarization
Ventricular repolarization
Quiz Questions with Answers
Forget wasting time on incorrect answers. We deliver the straight-up correct options, along with clear explanations that solidify your understanding.
Popular Quizzes in Electrocardiography
Popular Quizzes in Medicine
Report