ECG Components, Rhythms & Interpretation Guide for Nursing Students | Study Guide & Exam Prep

ECG Components, Rhythms, and Interpretation Guide for Nursing Student
ECG Components, Rhythms, and Interpretation Guide for Nursing Student
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1. What is perfu- The process of delivering oxygen and nutrients to tissues through the blood.
sion?

2. What is the con- The route through which electrical impulses travel in the heart, including the SA
duction pathway node, AV node, Bundle of His, and Purkinje fibers.
of the heart?

3. What does the SA The SA node, or sinoatrial node, is the natural pacemaker of the heart that initiates
node do? the heartbeat.

4. What is the PR in- The time period from the beginning of the P wave to the beginning of the QRS
terval? complex, indicating the time taken for electrical impulses to travel from the atria to
the ventricles.

5. What is the ST The flat section of the ECG between the end of the S wave and the beginning of
segment? the T wave, representing the period when the ventricles are depolarized.

6. What is the QRS The part of the ECG that represents the depolarization of the ventricles, leading to
complex? ventricular contraction.

7. What is the T The part of the ECG that represents the repolarization of the ventricles.
wave?

8. What is nor- A normal heartbeat rhythm originating from the SA node, characterized by a
mal sinus rhythm regular rate and rhythm.
(NSR)?

9. What is sinus A slower than normal heart rate, typically defined as fewer than 60 beats per
bradycardia? minute.

10. What is sinus A faster than normal heart rate, typically defined as more than 100 beats per
tachycardia? minute.

11.
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