#1
Which component of the ECG represents atrial depolarization?
#2
What does the QRS complex in an ECG represent?
#3
Which electrolyte imbalance is commonly associated with a prolonged QT interval?
#4
What is the normal duration of the PR interval in an ECG?
#5
What is the term for the time interval between the end of ventricular depolarization and the beginning of ventricular repolarization in an ECG?
#6
Which lead in an ECG is commonly used to assess the electrical activity of the inferior wall of the heart?
#7
Which interval in an ECG corresponds to the time it takes for an impulse to travel from the atria to the ventricles, including atrial contraction?
#8
Which wave in an ECG is associated with ventricular repolarization?
#9
What is the term for the segment of an ECG that represents the time when the ventricles are fully depolarized and in a contracted state?
#10
Which cardiac arrhythmia is characterized by chaotic, irregular atrial activity?
#11
In cardiac electrophysiology, what is the function of the sinoatrial (SA) node?
#12
Which antiarrhythmic medication primarily affects potassium channels, prolonging the action potential duration?
#13
What is the term for the abnormal conduction of electrical impulses in the heart, resulting in a reentrant circuit?
#14
In the context of cardiac electrophysiology, what is the role of the atrioventricular (AV) node?
#15
What is the primary function of the His-Purkinje system in the heart?
#16