Review Question - QID 213664

A 72-year-old woman is brought in by ambulance to the emergency department after she is found down at home. Specifically, her daughter says that she observed her mother to be convulsing on the floor of the bathroom when she returned home from work. On presentation, she is found to be unresponsive to sternal rub so she is intubated for airway protection. Her past medical history is significant for major depressive disorder as well as mild dementia. Her daughter does not know what medications she is on at this time. An electrocardiogram is obtained with the results shown in Figure A. Which of the following should be administered to the patient at this time?