ABSTRACT
A 30-year-old woman has presented to the emergency department with worsening shortness of breath, now present on minimal exertion. She is generally fit and well but these symptoms started eight months ago. She is a non-smoker and does not drink alcohol. She takes the combined oral contraceptive pill but no other medications. There are no significant medical problems. There is no history of skin lesions or joint pains. She did complain of fatigue, palpitations and feeling faint. There is no family history of venous thromboembolism or cardiorespiratory problems.
