Sinus, Atrial, & Junctional Arrhythmias

Front

In normal sinus rhythm, the P wave is:

Back

Present before every QRS Complex

Front

What is the normal range for the PR interval in a sinus rhythm?

Back

0.12 to 0.20 seconds

Front

What is the normal duration of the QRS complex in a sinus rhythm?

Back

Less than 3 small boxes

Front

Which of the following is a characteristic feature of atrial flutter on an ECG? Sawtooth-like waves in place of P waves, Wide QRS complexes with consistent intervals, Heart rate below 60 beats per minute, Irregularly irregular rhythm with no discernible P waves

Back

Sawtooth-like waves in place of P waves

Front

Which of the following is a characteristic feature of atrial fibrillation on an ECG? Sawtooth-like waves in place of P waves, Wide QRS complexes with consistent intervals, Heart rate between 60-100 beats per minute, Irregularly irregular rhythm with no discernible P waves

Back

Irregularly irregular rhythm with no discernible P waves

Front

Which type of arrhythmia is seen on the strip? Atrial Flutter, Sinus Dysrrhythmia, Junctional Escape Rhythm, Atrial Fibrillation

Back

Atrial Fibrillation

Front

Which type of arrhythmia is seen on the strip? Options: Sinus Tachycardia, Accelerated Junctional Rhythm, Atrial Flutter, Atrial Fibrillation

Back

Atrial Flutter

Front

What is the heart rate range commonly observed in atrial flutter?

Back

150-250 bpm

Front

Which of the following is the primary pacemaker in a junctional rhythm?

• Bundle of His

, Purkinje fibers, Sinoatrial Node, Atrioventricular Node

Back

Atrioventricular Node

Front

What characteristic is often seen in the P waves of a junctional rhythm?

Back

Absent or Inverted