10th May 2025

Investigations

• Exercise stress test: Elicits bidirectional or polymorphic VT (Figure-4)
• Genetic testing 
• Epinephrine or isoprenaline challenge may be considered when exercise testing is not possible

Image Source: Wikimedia Commons (2010). Catecholaminergic polymorphic ventricular tachycardia, Licensed under a creative commons licence. Available for free at:  https://commons.wikimedia.org/wiki/Category:Catecholaminergic_polymorphic_ventricular_tachycardia#/media/File:ECG000033_(CardioNetworks_ECGpedia).jpg (Accessed 7 May 2025).