ECG AND RHYTHM INTERPRETATION TEST CASE STUDIES I RHYTHM STRIPS AND ECGS CONTRIBUTED BY FRANK YANOWITZ, MD ECG LEARNING CENTER

ECG AND RHYTHM INTERPRETATION TEST EXAM

CASE STUDIES IV

RHYTHM STRIPS AND ECGS CONTRIBUTED BY FRANK YANOWITZ, MD ECG
LEARNING CENTER




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, • What is the rhythm disturbance?




–Rate: Ventricular < 40, Atrial in 70’s

–PR intervals: Variable, no relationship between the atria (P waves) and QRS complexes

–Rhythm frequently requires emergent pacing

• Complete A-V dissociation or third degree heart block




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,• What is the rhythm disturbances?

- First strip, Rate < 40 prolonged PR interval, with 1:1 conduction, first degree A/V block

- Second strip: Regular Ventricular rate 60 Sawtooth, atrial rate <300 4:1 atrial flutter

- Third strip, fibrillatory baseline with irregular R to R intervals, atrial fibrillation


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• What is the type of pacer?

— Ventricular sensed, ventricular paced

— Consistent with VVI




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