#1
Which of the following represents a normal sinus rhythm on an ECG?
P wave inverted in lead II
P wave before each QRS complex
Absent P wave
QRS complex after each P wave
#2
What is the typical heart rate range for sinus tachycardia?
Less than 60 beats per minute
60-100 beats per minute
100-150 beats per minute
Greater than 150 beats per minute
#3
Which ECG lead placement is used to assess for right ventricular infarction?
Lead I
Lead II
Lead V1
Lead V6
#4
Which ECG lead is commonly used to detect ST-segment changes indicative of myocardial ischemia?
Lead I
Lead II
Lead V1
Lead V4
#5
Which ECG lead is commonly used to diagnose posterior wall myocardial infarction?
Lead I
Lead II
Lead V1
Lead V4R
#6
What is the term for a delay in the electrical conduction between the atria and ventricles?
Bradycardia
Tachycardia
Bundle branch block
Heart block
#7
Which ECG finding is characteristic of atrial fibrillation?
Regular rhythm with narrow QRS complexes
Sawtooth-shaped baseline between QRS complexes
Absence of P waves
Wide QRS complexes
#8
Which ECG lead is commonly used to diagnose myocardial infarction?
Lead I
Lead II
Lead V1
Lead V6
#9
What is the term for an abnormally slow heart rate?
Bradycardia
Tachycardia
Atrial fibrillation
Supraventricular tachycardia
#10
What does the PR interval on an ECG represent?
Time taken for atrial depolarization
Time taken for ventricular depolarization
Time taken for atrial repolarization
Time taken for ventricular repolarization
#11
Which arrhythmia presents with a 'sine wave' pattern on ECG and is considered a medical emergency?
Ventricular tachycardia
Ventricular fibrillation
Atrial flutter
Supraventricular tachycardia
#12
Which electrolyte imbalance is associated with a prolonged QT interval on ECG?
Hyperkalemia
Hypokalemia
Hypercalcemia
Hypermagnesemia
#13
Which ECG finding is characteristic of ventricular tachycardia?
Absence of QRS complexes
Heart rate > 100 beats per minute
Tall, peaked T waves
Wide, bizarre QRS complexes
#14
Which ECG finding is characteristic of Wolff-Parkinson-White (WPW) syndrome?
Prolonged PR interval
Delta wave
Sawtooth-shaped baseline
Absent QRS complex
#15
In which condition would you typically find a 'sawtooth' pattern on an ECG?
Ventricular fibrillation
Atrial fibrillation
Atrial flutter
Sinus rhythm
#16
What does a peaked T wave indicate on an ECG?
Hyperkalemia
Hypokalemia
Hypercalcemia
Hypermagnesemia
#17
Which ECG finding is characteristic of complete heart block?
P waves before each QRS complex
Regular rhythm with narrow QRS complexes
Absence of P waves
Prolonged PR interval with dropped beats