Tests of SNHL are characterized by all EXCEPT
APositive Rinne test
BSpeech discrimination is good
CWeber lateralised to better ear
DMore often involving high frequencies
A pure tone audiogram showing a bone conduction dip (Carhart notch) at 2000 Hz is characteristic of-
AOtosclerosis
BPresbyacusis
COtotoxicity
DNoise induced hearing loss
What is the maximum allowable noise exposure according to the Indian Factory Act?
A90 db for 6 hours
B90 db for 8 hours
C85 db for 8 hours
D80 db for 8 hours
+ 7 more in the PDF
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