Tuning Fork Tests
Rinne’s Test
- Compares air conduction (A.C.) with bone conduction (B.C).
- Fork placed near auricle (A.C.) then over mastoid bone (B.C.).
- Normal: A.C. is better than B.C. (Rinne positive).
- Conductive Hearing Loss (CHL): B.C. is better than A.C. (Rinne negative).
- Sensorineural Hearing Loss (SNHL): A.C. is better than B.C., but both are reduced (Reduced Rinne positive).
Weber’s Test
- Compares bone conduction in both ears.
- Fork stem placed on the forehead.
- Normal: Sound heard centrally or equally in both ears.
- CHL: Sound heard well in the deaf ear due to outside noise masking the normal ear.
- SNHL: Sound heard well in the normal ear.
