4th May 2025

A 50-year-old man with a history of a STEMI presents with a collapse.

A 50-year-old man with a history of a STEMI presents with a collapse. An hour earlier he complained of palpitations and lightheadedness before collapsing. His symptoms are still ongoing. On arrival to ED, his blood pressure was 150/90mmHg and a heart rate of 175 bpm. ECG shows a broad-based tachyarrhythmia.

Which of the following features in his ECG would favour a diagnosis of VT versus SVT?

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