EKG Rhythm Quiz 283

Identify the following rhythms.

1.

a. Normal sinus rhythm with first degree block
b. Sinus bradycardia with first degree block
c. Second degree heart block type II
d. Complete heart block

2.

a. Atrial fibrillation with slow ventricular response
b. Sinus bradycardia
c. Sinus arrest
d. Junctional rhythm

3.

a. Sinus rhythm with a PVC
b. Sinus bradycardia with a PVC
c. Sinus rhythm with a PAC
d. Sinus bradycardia with a PAC

4.

a. Atrial paced
b. Biventricular paced
c. Ventricular paced
d. AV paced

5.

a. Atrial fibrillation changing to SVT
b. NSR changing to VF
c. Idioventricular rhythm changing to TDP
d. Sinus rhythm changing to VT

6.

a. Atrial fibrillation with a run of SVT
b. Atrial fibrillation with a run of VT
c. Atrial fibrillation with a run of AIVR
d. Atrial fibrillation with a run of MAT

7.

a. Atrial flutter with RVR
b. Atrial fibrillation with RVR
c. Sinus tachycardia
d. Supraventricular tachycardia

8.

a. Junctional rhythm
b. Accelerated junctional rhythm
c. Idioventricular rhythm
d. Accelerated idioventricular rhythm

9.

a. NSR with PJCs
b. NSR with dropped PACs
c. NSR with PACs
d. NSR with PJCS

10.

a. Sinus arrhythmia
b. 2nd degree heart block type I
c. NSR with PACs
d. Sinus arrest

Answers

01. b. Sinus bradycardia with first degree block.  The PR interval is about 0.28 sec.

02. a. Atrial fibrillation with slow ventricular response

03. a. Sinus rhythm with a PVC

04. c. Ventricular paced. The QRS complex is usually wide on a ventricular paced rhythm with the QRS complex and the T wave having an axis that is usually opposite one another.

05. d. Sinus rhythm changing to VT

06. c. Atrial fibrillation with a run of AIVR.   At the beginning of the ectopic rhythm the rate is less than 100 bpm but towards the end it speeds up some.  

07. a. Atrial flutter with RVR

08. a. Junctional rhythm

09. c. NSR with PACs. You know that the ectopic beats are not PVCs because the QRS complexes are narrow. Look at the over all rhythm and find what looks to be normal sinus beats. Then compare the morphology or the shape or the contour of the T waves. You can see some slight differences in the T waves that precede the ectopic beats. This usually indicates the presence of P waves that are hidden or fused in the T waves.

10. b. 2nd degree heart block type I