5th November 2021

A 67-year-old gentleman with a history of ischaemic heart disease presents to his GP having suffered a funny turn

A 67-year-old gentleman with a history of ischaemic heart disease presents to his GP having suffered a funny turn. He explains that he suddenly collapsed with no prior warning. A collateral history from his son reveals he fainted only for 3 seconds. There were no tongue biting, abnormal muscle jerks or incontinent episodes during the event. The episode was not related to a change in posture. An ECG is carried out which shows a complete heart block. What ECG sign is typical of a complete heart block?

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