Which of the following is NOT characteristic of multifocal atrial tachycardia?
A) Nonvisible P waves with a rapid ventricular rate
B) QRS complexes less than 0.12 seconds in duration
C) Variable PR intervals and P waves of differing size
D) Regular R-R intervals with a rate less than 150 beats/min
Answer: D) Regular R-R intervals with a rate less than 150 beats/min
Health Professions
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