Arrhythmia Recognition Quiz

What is the normal heart rate range?

• 100-120 bpm

• 40-60 bpm

• 120-140 bpm

• 60-100 bpm

Which structure is known as the primary pacemaker of the heart?

• Purkinje fibers

• Sinus node

• Bundle of His

• AV node

What is the definition of tachyarrhythmia?

• Regular rhythm at a rate of 60-100 bpm

• Irregular rhythm with a normal heart rate

• Heart rhythm with a ventricular rate of 100 beats/min or greater

• Heart rhythm with a ventricular rate of 60 beats/min or lower

Which arrhythmia is characterized by chaotic, rapid atrial rates of 400-600 beats per minute?

• Sinus tachycardia

• Atrial flutter

• Atrial fibrillation

• Supraventricular tachycardia

What does the PR interval represent?

• Time taken for the heart to reset

• Time taken for the impulse to travel from the SA node to the ventricles

• Time taken for the ventricles to contract

• Time taken for the atria to fill with blood

What is the definition of bradyarrhythmia?

• Irregular rhythm with a normal heart rate

• Regular rhythm at a rate of 60-100 bpm

• Heart rhythm with a ventricular rate of 60 beats/min or lower

• Heart rhythm with a ventricular rate of 100 beats/min or greater

Which type of heart block is characterized by a lengthening PR interval until a P wave is not followed by a QRS complex?

• 1st degree heart block

• 2nd degree heart block Mobitz I

• 2nd degree heart block Mobitz II

• 3rd degree heart block

What is the risk associated with 2nd degree heart block Mobitz II?

• Only occurs in children

• High risk for complete heart block

• Low risk for complete heart block

• No risk at all

What is the term for the absence of a pulse despite the presence of electrical activity on the ECG?

• Sinus bradycardia

• Ventricular fibrillation

• Pulseless electrical activity (PEA)

• Asystole

Atrial fibrillation is caused by:

• a re-entrant pathway

• a faster than usual firing rate of SA node

• multiple firing sites in the atria

• a block in AV node