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A 73-year-old woman comes to the physician because of several episodes of dizziness and near-syncope over the past week. She reports no chest pain but says she occasionally feels like she’s about to faint when getting up too quickly. Blood pressure is 120/85mm Hg. An ECG is shown. Which of the following is the most likely diagnosis and treatment?
A) First-degree block; observe
B) First-degree block; pacemaker
C) Mobitz type I (Wenckebach); observe
D) Mobitz type I (Wenckebach); pacemaker
E) Mobitz type II; observe
F) Mobitz type II; pacemaker
G) Third-degree block; observe
H) Third-degree block; pacemaker
I) Wolff-Parkinson-White; observe
J) Wolff-Parkinson-White; pacemaker
