A patient is currently undergoing a diagnostic work up for pulmonary hypertension.
A patient is currently undergoing a diagnostic work up for pulmonary hypertension. They have had an echocardiogram which suggested a high probability of pulmonary hypertension. The aetiology is currently unclear. Which of the following investigations is least likely to aid in identifying the underlying cause of their pulmonary hypertension?
Select the SINGLE most appropriate option from the list below. Select ONE option only.
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