23rd January 2024

A 39-year-old female presents to an emergency department in the UK with ongoing fever

A 39-year-old female presents to an emergency department in the UK with ongoing fever, rigors, myalgia and headache. She has a past medical history of asthma, for which she takes inhalers. Of note in her social history, she had returned from Southeast Asia two months ago and had multiple mosquito bites as her accommodation did not provide insecticide-treated bed nets.

Which of the following is the most appropriate diagnostic investigation?

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