Question 1: What is the diagnosis of the FLB (funny-looking-beat) in this Lead V1 ECG rhythm strip?

Select an answer:

A. It's a PAC with LBBB aberration

B. It's a PAC with RBBB aberration

C. It's a PVC from the right ventricle

D. It's a PVC from the left ventricle

Question 2: In this V1 rhythm strip, what does the 'F' imply?

Select an answer:

A. 'F' is for "Funny-looking-beat"

B. 'F' is for "failure-to-capture" which implies the sinus P wave can't get into the ventricles.

C. 'F' is for "fusion beat"; i.e. the fusion of a right ventricular PVC with the sinus initiated QRS complex.

D. 'F' is for "fusion beat"; i.e. the fusion of a left ventricular PVC with the sinus initiated QRS complex.

Question 3: In this V1 rhythm strip look at the wide QRS rhythm. Why do the RR intervals vary?

Select an answer:

A. This is a ventricular tachycardia with intermittent 2:1 exit block.

B. This is paroxysmal atrial fibrillation with RBBB aberrency.

C. This is a ventricular escape rhythm alternating with ventricular tachycardia.

D. This is sinus rhythm with a rate-related right bundle block.

Question 4: In this V1 rhythm strip there are 4 FLB's (Funny-looking-beats) in addition to the normal sinus beats. What are they?

Select an answer:

A. These are multifocal PVCs

B. The first FLB is a late onset PVC, and the other three are fusion beats.

C. Intermittent right bundle branch block (RBBB)

D. Intermittent WPW type preexcitation

Question 5: In this V1 rhythm strip, what degree of AV block (if any) is present?

Select an answer:

A. 1st degree AV block

B. 2nd degree AV block

C. 3rd degree AV block

D. No AV block; this is complete AV dissociation

Question 6: In this V1 rhythm strip, what do the 'e' and 'c' represent

Select an answer:

A. The 'e' represents a ventricular echo beat form the nonconducted P wave. The 'c' is a sinus capture.

B. The 'e' is for ventricular escape. The 'c' is a PAC.

C. The 'e' is a junctional escape, and 'c' represents a PAC.

D. The 'e' represents a junctional escape beat; the 'c' represents a sinus capture.

Question 7: This somewhat perplexing rhythm strip has a rather simple explanation. What is it?

Select an answer:

A. Junctional rhythm with occasional PVC

B. Complete AV block; junctional escape rhythm; occasional PVC

C. Sinus rhythm with 1st degree AV block; occasional PVC

D. Junctional rhythm, PVC, and nonconducted PAC

Question 8: This facinating V1 rhythm strip has several interesting features. What's the likely cause of the pauses in the rhythm?

Select an answer:

A. 2nd degree AV block (Type I, Wenckebach)

B. 2nd degree AV block (Type II, Mobitz)

C. Nonconducted PACs

D. Marked sinus arrhythmia

Question 9: This facinating V1 rhythm strip has several interesting features. What event terminates the pauses?

Select an answer:

A. A sinus beat that has been reset by the PAC.

B. A ventricular escape beat

C. An electronic pacemaker beat originating from the right ventricle.

D. A junctional escape complex.

Question 10: What is the diagnosis of this bigeminal rhythm?

Select an answer:

A. 2nd degree AV block type II (Mobitz)

B. Nonconducted PACs following every two consecutive sinus beats.

C. 2nd degree AV block (Type I, Wenckebach)

D. Sino-atrial exit block