Second
pass: After the first pass is over, the scope is gently
withdrawn out and slide medial to the middle turbinate. The
relation ship between the middle turbinate and nasal septum
is studied. This relationship is classified as TS1,
TS2, and TS3. It depends on whether, after application of
decongestant both the medial and lateral surfaces of the middle
turbinate is visible (TS1), part of the middle turbinate is
obscured by septal deviation (TS2), or the septal deviation is
completely obscures the middle turbinate (TS3). The scope
is gently slipped medial to the middle turbinate. The sphenoid
ostium comes into view. Secretions if any from the ostium is
noted.
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