16th February 2024

A 20-year-old female presents to A&E with an episode of abdominal pain

A 20-year-old female presents to A&E with an episode of abdominal pain, face and tongue swelling. She could talk in complete sentences on examination but had an audible stridor. Her mother, who accompanied her, described that she had similar episodes in the past without apparent precipitating factors.

What is the initial screening test for this condition?

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