ECG Basics and Common Cardiac Rhythms for Nursing Students
ECG Basics and Common Cardiac Rhythms for Nursing Students
Study online at https://quizlet.com/_jplf19
1. ECG Records the electrical activity of the heart.
2. P wave Atrial depolarization (atria contract).
3. PR interval Time the impulse travels from atria to ventricles.
4. QRS complex Ventricular depolarization (ventricles contract).
5. ST segment Early ventricular recovery; elevation/depression may indicate ischemia or in-
farction.
6. T wave Ventricular repolarization (ventricles relax).
7. Normal heart rate 60-100 bpm.
8. Normal PR interval 0.12-0.20 sec.
9. Normal QRS dura- <0.12 sec.
tion
10. Normal Sinus Normal rhythm.
Rhythm (NSR)
11. Sinus Bradycardia HR <60 bpm.
12. Sinus Tachycardia HR >100 bpm.
13. Atrial Fibrillation Irregular rhythm, no distinct P waves.
(AF)
14. Ventricular Tachy- Fast, wide QRS; can be life-threatening.
cardia (VT)
15. Ventricular Fibrilla- Chaotic rhythm; no pulse; requires immediate CPR and defibrillation.
tion (VF)
1/2
ECG Basics and Common Cardiac Rhythms for Nursing Students
Study online at https://quizlet.com/_jplf19
1. ECG Records the electrical activity of the heart.
2. P wave Atrial depolarization (atria contract).
3. PR interval Time the impulse travels from atria to ventricles.
4. QRS complex Ventricular depolarization (ventricles contract).
5. ST segment Early ventricular recovery; elevation/depression may indicate ischemia or in-
farction.
6. T wave Ventricular repolarization (ventricles relax).
7. Normal heart rate 60-100 bpm.
8. Normal PR interval 0.12-0.20 sec.
9. Normal QRS dura- <0.12 sec.
tion
10. Normal Sinus Normal rhythm.
Rhythm (NSR)
11. Sinus Bradycardia HR <60 bpm.
12. Sinus Tachycardia HR >100 bpm.
13. Atrial Fibrillation Irregular rhythm, no distinct P waves.
(AF)
14. Ventricular Tachy- Fast, wide QRS; can be life-threatening.
cardia (VT)
15. Ventricular Fibrilla- Chaotic rhythm; no pulse; requires immediate CPR and defibrillation.
tion (VF)
1/2
