Eustachian tube patency seen by ?
Ans. is d i.e., All the above Tests for Eustachian tube patency Valsalva test Methylene blue test Sonotubometry Politzer test Toynbee test Frenzel maneuver Catheterization Inflation - Deflation test
Valsalva
Methylene blue test
Tonybee test
All the above