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Heart Rhythms (EKG) | Study Guide, Practice Questions & Exam Review

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Comprehensive Heart Rhythms (EKG) study guide covering ECG/EKG rhythm recognition, cardiac rhythm interpretation, and essential electrocardiography concepts. Designed to help students review common heart rhythms, improve EKG interpretation skills, and prepare for nursing, EMT, ACLS, and healthcare-related exams. Ideal for EKG rhythm interpretation, heart rhythm recognition, ECG practice, nursing exam preparation, and ACLS review.

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Heart Rhythms (EKG)
Heart Rhythms (EKG)
Study online at https://quizlet.com/_doqiux

1. normal sinus rhythm (NSR)

regular rhythm of the heart cycle stimulated by the SA
node (average rate of 60-100 beats/minute)

2. Sinus Bradycardia, less than 60 bpm

3. Sinus Tachycardia, Greater than 100 bpm

4. Premature Atrial Contraction (PAC) - irregular heart
rhythm characterized by atrial contractions occurring
before the expected time

5. Sinus Arrhythmia - in which the rate varies with respi-
ration, causing an irregular rhythm.

6. atrial fibrillation

occurs when the normal rhythmic contractions of the
atria are replaced by rapid irregular twitching of the
muscular heart wall

7. Preventricular Contraction (PVC)

Abnormal beat generated from the ventricles. Charac-
terized by a wide and bizarrely shaped QRS. Can be
unifocal (if deflections look the same) or multi focal (if
deflections look different)

8. ventricular tachycardia

A rapid heart rhythm in which the electrical impulse
begins in the ventricle (instead of the atrium), which


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