#1
Which of the following is a common symptom of atrial fibrillation?
#2
What is the primary function of the sinoatrial (SA) node in the heart?
#3
What is the term for a brief episode of rapid, irregular heartbeats that often resolves on its own?
#4
Which type of cardiac arrhythmia is often associated with a fluttering sensation in the chest and shortness of breath?
#5
Which electrolyte imbalance is commonly associated with Torsades de pointes, a specific type of ventricular tachycardia?
#6
What is the normal range for the resting heart rate in adults?
#7
Which type of cardiac arrhythmia is characterized by a fast, regular heartbeat?
#8
Which ECG wave represents ventricular depolarization?
#9
What is the term for a prolonged, chaotic, and rapid rhythm originating from the ventricles?
#10
Which condition is characterized by the absence of electrical activity in the heart, leading to a lack of pulse and consciousness?
#11
What is the primary goal of antiarrhythmic medications?
#12
In which phase of the cardiac action potential does the rapid influx of sodium ions occur?
#13
What is the term for the delay in the electrical impulse as it passes through the atrioventricular (AV) node?
#14
Which medication is commonly used to treat ventricular arrhythmias?
#15
In atrial flutter, what is the characteristic ECG pattern known as?
#16
Which electrolyte imbalance can contribute to the development of cardiac arrhythmias?
#17
Which cardiac arrhythmia is often associated with a rapid and chaotic rhythm, leading to ineffective pumping of the heart?
#18
What is the term for the interval on an ECG that represents the time it takes for the electrical impulse to travel through the ventricles?
#19