A 60-year-old woman is brought to the physician by her husband for a follow-up examination. An ECG is shown. She is currently asymptomatic.
Which of the following is the most likely explanation for these findings, and what is the treatment?
1st degree heart block; no treatment acutely
1st degree heart block; pacemaker
Mobitz I; no treatment acutely
Mobitz I; pacemaker
Mobitz II; no treatment acutely
Mobitz II; pacemaker
Third degree heart block; flecainide
Third degree heart block; pacemaker
Wolff-Parkinson White; procainamide
Wolff-Parkinson White; pacemaker
