Comprehensive EKG Rhythm Interpretation for Nursing Students – Cardiac Rhythm Study Guide & Exam Prep

Comprehensive EKG Rhythm Interpretation for Nursing Students
Comprehensive EKG Rhythm Interpretation for Nursing Students
Study online at https://quizlet.com/_jq9201

1. Heart Rate Determine the heart rate.

2. Rhythm Regular or irregular?

3. P Waves Are P waves present?

4. PR Interval 0.12 - 0.20 sec (3-5 small boxes)

5. QRS Duration < 0.12 sec (narrow) or e0.12 sec (wide)

6. Normal Sinus Rate: 60-100 bpm; Rhythm: Regular; P waves: Upright, uniform, 1:1 with QRS; PR
Rhythm interval: 0.12 - 0.20 sec; QRS duration: < 0.12 sec.

7. Sinus Bradycar- Rate < 60 bpm; Regular rhythm; P waves present, upright, 1:1; PR interval: 0.12 -
dia 0.20 sec; QRS duration: < 0.12 sec.

8. Sinus Tachycar- Rate 101-160 bpm; Regular rhythm; P waves present, upright, 1:1; PR interval: 0.12
dia - 0.20 sec; QRS duration: < 0.12 sec.

9. Atrial Fibrillation Irregularly irregular; No P waves; Variable rate (usually 60-100); QRS duration: <
(A-Fib) 0.12 sec.

10. Atrial Flutter Atrial rate 250-350 bpm; Sawtooth pattern; Ventricular rate variable; QRS duration:
< 0.12 sec.

11. Supraventricular Rate 150-250 bpm; Regular; P waves often hidden; QRS duration: < 0.12 sec.
Tachycardia (SVT)

12. 1st Degree AV Regular rhythm; Present P waves; PR interval > 0.20 sec; QRS duration: < 0.12 sec.
Block

13. 2nd Degree AV Progressively lengthening PR interval then dropped QRS; Irregular rhythm; QRS
Block Type I duration: < 0.12 sec.
(Wenckebach)

1/2