Tests For Hearing
One man had 30 dB deafness in left ear with Weber test showing more sound in left ear and Be (Bone conduction] more on left side and normal hearing in right ear, his test can be summarized as:
|A||Weber's test--Ieft lateralized; Rinne test--right positive, BC>AC on left side|
|B||Weber's test--right lateralized; Rinne test--Ieft positive, AC>BC on right side|
|C||Weber's test--Ieft lateralized; Rinne test--false positive on right side, BC>AC on left side|
|D||Weber's left lateralized; Rinne test--equivocal, BC>AC on right side|
• Let us analyze each information provided in the question.
• This man has deafness of 30 dB in left ear.
Weber's test is lateralized to left ear Le. deaf ear which means deafness is conductive type. (As in conductive deafness
- Weber's test is lateralized to poorer ear).
This means Rinne test should be negative on left side (as in conductive deafness - Rinne test is negative). Ruling out
options "b" and "d";
In the question it is given hearing is normal on right side, so Rinne test will be positive on right side (because in case of normal hearing - Rinne test is positive).
In the question itself it is given, bone conduction is more on left side.
So option "0" is correct .:
Weber's test - left lateralized, Rinne test - right positive and BC>AC on left side.