27th September 2021

A 38-year-old male presents to A&E with hypotension, pallor and clammy extremities

A 38-year-old male presents to A&E with hypotension, pallor and clammy extremities. He is very confused. As part of the investigation work-up, a 12-lead ECG is taken, revealing a sinus bradycardia of 35bpm. Intravenous atropine is administered, but this is found to have an unsatisfactory response. Expert help is sought, with the view to arrange transvenous pacing. In the interim period, the patient is administered with more medication.

Which of the following is the patient least likely to be administered with to manage the bradycardia? Select ONE option only.