Thursday, January 1, 2015

Practice EKG Strips 379 HAPPY NEW YEAR

Identify the following rhythms. HAPPY NEW YEAR

1.













a. Normal sinus rhythm
b. Sinus bradycardia
c. First degree block
d. 2nd degree type II heart block

2.











a. NSR with a run of SVT
b. NSR with a run of VT
c. NSR with a run of MAT
d. NSR with a run of ST

3.












a. Normal sinus rhythm
b. Sinus arrhythmia
c. Sinus rhythm with PACs
d. Complete heart block

4.














a. Supraventricular tachycardia
b. Sinus tachycardia
c. Junctional tachycardia
d. Multifocal atrial tachycardia


5.













a. Ventricular tachycardia
b. Accelerated idioventricular rhythm
c. Ventricular paced
d. Complete heart block

Answers
1. c. First degree block. The rhythm is regular. The P waves have a positive axis and are associated with a QRS complex. The P waves are slightly fused with the T waves of the preceding complexes. The PR interval is prolonged. The QRS complexe are narrow. No ectopic beats are seen. PR: .24 sec, QRS: .08 sec, QT: .44 sec.

2. b. NSR with a run of VT. The rhythm begins as NSR. There are upright P waves that are associated with a QRS complex. The QRS complexes are wide. PR: .12 sec. QRS: .12 sec, QT: .40 sec. The 8th complex looks like a fusion complex and it is followed by a run of VT. A compensatory pause follows the run of VT and then sinus rhythm resumes.

3. b. Sinus arrhythmia. The rhythm is irregular. Notice the difference in the R - R interval of the first and second complexes compared to the r - R interval of the last two complexes. The P waves are upright and married to a QRS complex. The QRS complexes are narrow. No ectopic beats are seen. PR: .20 sec, QRS: .08 sec, QT: .44 sec

4. b. Sinus tachycardia The rhythm is regular with a rate of 150 bpm. The P waves are upright and paired with a QRS complex. The QRS complexes are narrow. There is some ST depression and T wave inversion. No ectopic beats are noted. PR: .12 sec, QRS: .08, QT: .32 sec.

5. c. Ventricular paced. The underlying rhythm looks like atrial fibrillation with ventricular paced beats.

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