10th March 2024

You are reviewing a 44-year-old female in the acute respiratory clinic.

You are reviewing a 44-year-old female in the acute respiratory clinic. After taking a thorough history and examining her, you suspect she may have chronic thromboembolic pulmonary hypertension (Group 4 Pulmonary hypertension). An initial TTE confirms that she has a raised pulmonary pressure. What initial test would you ask for to confirm whether this is indeed CTEPH?

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