You respond on the report of dizziness. Upon arrival you fi…
You respond on the report of dizziness. Upon arrival you find an 83 year old female sitting on a bench at the local shopping market. Patient states that she was shopping when she suddenly felt light-headed and dizzy and felt as if she were going to pass out. In addition to the dizziness and light-headedness, the patient also feels somewhat SOB as well. Vital signs reveal a blood pressure of 86 / 54, heart rate of 180 bpm, respirations of 24 bpm, and a pulse oximetry of 88%. The EKG reveals Atrial Fibrillation. Which of the following medications would be the most appropriate to administer in this situation: