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Tunning Fork Test

A. Rinne’s test

  1. Normal: Air conduction is more than bone conduction
  2. Conduction deafness: BC> AC
  3. Neural deafness: AC>BC (as long as the nerve deafness is partial)

B. Weber’s test

  1. In nerve deafness: Lateralisation towards normal side (i.e. the subject hears better on the normal side ear during the test)
  2. In conduction deafness: Lateralisation is towards damaged side

C. Schwabach’s test (Absolute bone conduction test)

  1. Conductive deafness: >normal
  2. Neural deafness: < normal

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