Practice EKG Strips 403

Identify the following rhythms.

1.

a. Sinus arrhythmia
b. Sinus rhythm
c. Sinus arrest
d. Sinus rhythm with dropped PAC

2.

a. Atrial fibrillation with RVR
b. Supraventricular tachycardia
c. Ventricular tachycardia
d. Accelerated idioventricular rhythm

3.

a. Complete heart block
b. Idioventricular rhythm
c. Sinus bradycardia
d. Junctional rhythm


4.

a. Sinus bradycardia
b. Normal sinus rhythm
c. First degree block
d. Sinus arrest

5.

a. Atrial tachycardia
b. Supraventricular tachycardia
c. Ventricular tachycardia
d. Sinus tachycardia





Answers
1. c. Sinus arrest. The rhythm is irregular due to the 1. 4 sec period of sinus inactivity. There are upright P waves that are associated with a QRS complex. The QRS complexes are narrow. No ectopic beats are seen. PR: .12 sec, QRS: .08 sec, QT: .48 sec

2. a. Atrial fibrillation with RVR. The rhythm is irregular. The rate is 130 bpm. No P waves are seen. The QRS complexes are wide. No ectopic beats are seen. PR: ---, QRS: .12 sec, QT: .32 sec.

3. b. Idioventricular rhythm. The rhythm is slightly irregular. No P waves are seen. The QRS complexes are wide so this indicates that the rhythm is from the ventricles. No ectopic beats are seen

4. a. Sinus bradycardia. The rhythm is regular. The rate is  50 bpm. The P waves have a positive axis and are paired with a QRS complex. The QRS complexes are narrow. No ectopic beats are seen. PR: .20 sec, QRS: .08 sec, QT: .40 sec.

5. c. Ventricular tachycardia. The rhythm is regular. The rate is 180 bpm. No P waves are seen. The QRS complexes are wide. No ectopic beats are seen. What is the initial joule setting to treat a pulseless patient with this rhythm? 120 - 200 J. What is the joule setting to cardiovert an unstable patient with this rhythm? 100 J