19th February 2025

A 71-year-old gentleman presents to hospital with breathless on exertion, fatigue and weakness.

A 71-year-old gentleman presents to hospital with breathless on exertion, fatigue and weakness. His ECG shows sinus tachycardia with a rate of 102 bpm and his chest x-ray shows no focal abnormalities. Examination reveals an elevated JVP with a right ventricular heave. You suspect a possible diagnosis of pulmonary hypertension. Which would be the definitive investigation to confirm a diagnosis of pulmonary hypertension?

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