11th May 2025

A 63-year-old woman is admitted to hospital with breathlessness and wheezing.

A 63-year-old woman is admitted to hospital with breathlessness and wheezing. This is her third hospital admission in 12-months with the same presentation. She is treated for an infective exacerbation of her COPD. During her hospital stay she is noticed to have marked pedal oedema and an elevated JVP. A transthoracic echocardiogram is performed which reveals right sided cardiac dysfunction, normal left sided systolic function and mean pulmonary pressures of 40mmHg. She is referred for further investigations for suspected pulmonary hypertension. Which of the following WHO classifications would the cause of her pulmonary hypertension most likely fall under?  

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