6th July 2026

A 39-year-old female presents to A&E with sudden onset dyspnoea, pleuritic chest pain, and light-headedness.

A 39-year-old female presents to A&E with sudden onset dyspnoea, pleuritic chest pain, and light-headedness. She has no past medical or surgical history. She doesn’t take any regular medications but has a Mirena coil in situ. After thorough history taking and examination, you suspect she has an unprovoked PE. The patient denies any weight loss, night sweats, or fevers. What disease should be tested for in this patient?

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