ECG Rhythms and Heart Block Types for Nursing Students – Practice Questions, Answers & Study Guide

ECG Rhythms and Heart Block Types for Nursing Students
ECG Rhythms and Heart Block Types for Nursing Students
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1. What is the role It initiates the electrical impulse that causes the heart to beat.
of the SA Node in
the ECG?

2. What does the P Atria squeeze; it indicates blood being pushed into the ventricles.
wave represent in
an ECG?

3. What is the nor- 0.12-0.20 seconds.
mal duration of
the PR interval?

4. What does a wide Ventricles contract; it is abnormal if it lasts longer than 0.12 seconds.
QRS complex in-
dicate?

5. What does the ST It may indicate a heart attack.
segment indicate
if elevated?

6. What does the T Recovery phase; it indicates that the ventricles are relaxing.
wave represent?

7. What are the four 1. Rate? 2. Regular? 3. P waves? 4. QRS?
questions to ask
when analyzing
any rhythm?

8. What defines a Rate of 60-100 bpm, regular rhythm, present P waves, and narrow QRS.
Normal Sinus
Rhythm?

9. A normal rhythm with a heart rate of less than 60 bpm.

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