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Eustachian tube patency seen by -

A
Valsalva
B
Methylene blue test
C
Toyn bee test
D
All the above
High-Yield Explanation
Ans. is 'd' i.e., All the above Tests for Eustachian tube patencyValsalva testo Politzer testo Catheterizationo Methylene blue testo Toynbee testo Inflation-Deflation testo Sonotubometry'o Frenzel maneuver
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