Understanding Electrocardiogram (ECG) Artifacts and Abnormalities Quiz
Test your knowledge on ECG artifacts & abnormalities with questions on P wave, QRS complex, ST segment, T wave, Osborn waves & more.
#1
Which of the following is a common cause of motion artifact in an ECG?
Electrode detachment
Electrical interference
Patient movement
Loose electrode gel
#2
What is the typical duration of a normal P wave in an ECG?
Less than 0.04 seconds
0.06 to 0.12 seconds
0.20 to 0.30 seconds
0.40 to 0.50 seconds
#3
Which ECG waveform represents ventricular depolarization?
P wave
QRS complex
T wave
U wave
#4
What does 'ST segment elevation' typically indicate on an ECG?
Myocardial infarction
Hypokalemia
Pulmonary embolism
Atrial fibrillation
#5
Which of the following artifacts is commonly caused by electrode poor contact or muscle contraction?
Baseline wander
60 Hz interference
Somatic tremor
Electrode reversal
#6
What is a common characteristic of the QRS complex in a normal ECG?
It represents ventricular repolarization
It typically has a duration of less than 0.12 seconds
It indicates atrial contraction
It is followed by the T wave
#7
Which of the following is a typical characteristic of an artifact known as 'AC interference'?
Regular pattern with a frequency of 60 Hz
Irregular pattern with varying frequencies
High-frequency oscillations
Low-frequency oscillations
#8
What is 'Torsades de pointes' as observed on an ECG?
Atrial flutter
Ventricular tachycardia
Sinus bradycardia
First-degree heart block
#9
Which of the following conditions is commonly associated with 'Osborn waves' on an ECG?
Hypothermia
Hyperkalemia
Hypokalemia
Hypercalcemia
#10
What is a potential cause of 'sawtooth pattern' on an ECG?
Ventricular fibrillation
Atrial flutter
Sinus rhythm
Second-degree heart block
#11
What is a common finding in 'Wolff-Parkinson-White syndrome' on an ECG?
Absence of P waves
Short PR interval
Wide QRS complex
Presence of U waves
#12
Which of the following represents an abnormal finding in the T wave morphology of an ECG?
Biphasic T wave
Inverted T wave in leads V1-V3
Presence of U waves
Flat T wave
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