Fig. 1From: Variability in instructions for performance of nasopharyngeal swabs across Canada in the era of COVID-19 – what type of swab is actually being performed?Sagittal CT view of nose and nasopharynx (50-year-old Caucasian female). Areas reached by recommended measured depth of insertion are demonstrated. FS - Frontal Sinus, MT - Middle Turbinate, IT - Inferior Turbinate, SS - Sphenoid Sinus, NP - NasopharynxBack to article page