1st April 2022

A 45-year-old male who has returned from a business trip to Jordan presents to ED

A 45-year-old male who has returned from a business trip to Jordan presents to ED with chest pain and shortness of breath. He has a 7-day history of arthralgia, myalgia and fatigue, with onset of fever and cough that is productive thin, watery sputum in the last 2 days. He feels very lethargic and has also developed loose stools. Basic observations: HR 50, BP 138/68, RR 22, Temp 39°C.

Based on the likely causative organism, what is the first line investigation that is most likely to achieve an accurate diagnosis?

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