23rd September 2021

A 79-year-old female is admitted with chest pain

A 79-year-old female is admitted with chest pain. She has a past medical history of aortic stenosis, for which she is awaiting surgery. An ECG shows a rate of 150, as well as regular QRS complexes with widths greater than 0.12s. Her observations, other than her pulse, are within normal parameters. She is currently complaining of mild chest pain but is fully conscious.

Which of the following is the most appropriate next step in management?

Select the SINGLE most appropriate option from the list below. Select ONE option only.