Understanding ECG Rhythms: Identification and Characteristics Quiz

1. What is Normal Sinus Rhythm?

2. What are the characteristics of Sinus Bradycardia?

Sinus Bradycardia is defined as a regular but unusually slow heart rate, typically less than 60 beats per minute. The rhythm is characterized by regular atrial and ventricular rhythms, with upright and uniform P waves before each QRS complex. The PR interval falls within the range of 0.12-0.20 seconds, and the QRS complexes are uniform in appearance with a length of 0.06-0.12 seconds. Any deviations from these characteristics would indicate a different cardiac condition.

Explanation

Sinus Bradycardia is defined as a regular but unusually slow heart rate, typically less than 60 beats per minute. The rhythm is characterized by regular atrial and ventricular rhythms, with upright and uniform P waves before each QRS complex. The PR interval falls within the range of 0.12-0.20 seconds, and the QRS complexes are uniform in appearance with a length of 0.06-0.12 seconds. Any deviations from these characteristics would indicate a different cardiac condition.

3. What are the characteristics of Sinus Tachycardia?

4. What is sinus arrhythmia?

1. Sinus arrhythmia is a type of heart condition that requires urgent medical intervention.

2. Sinus arrhythmia is a rare genetic disorder that affects the heart's electrical system.

5. What is sinus arrest or pause defined as?

C. A regular rhythm with consistent P wave morphology.

A. The presence of abnormal P waves indicating a heart block.

B. A prolonged PR interval lasting more than 5 seconds.

Sinus arrest or pause is characterized by the transient absence of sinus P waves, which can last from 2 seconds to several minutes. It is not related to abnormal P waves, a prolonged PR interval, or a regular rhythm with consistent P wave morphology.

Explanation

Sinus arrest or pause is characterized by the transient absence of sinus P waves, which can last from 2 seconds to several minutes. It is not related to abnormal P waves, a prolonged PR interval, or a regular rhythm with consistent P wave morphology.