29th September 2021

A 45-year-old patient reports no resolution of her symptoms due to her nasal polyps

A 45-year-old patient reports no resolution of her symptoms due to her nasal polyps following 3 months of topical corticosteroid therapy. The patient discusses surgical removal of the polyps with her doctor. What investigation must be performed prior to surgery?

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