Hearing loss of 65dB, what is the grade of deafness-
Correct Answer: Moderately severe
Description: Ans. is 'd' i.e., Moderately severe o WHO recommended the following classification on the basis of pure tone audiogram.Hearing threshold in better ear (average of 500,1000,2000Hz)Degree of impairment (WHO classification)Ability to understand speech0-25Not significantNo significant difficulty with faint speech2640MildDifficulty with faint speech.41-55ModerateFrequent difficulty with normal speech.56-70Moderately severeFrequent difficulty even with loud speech71-91SevereCan understand only shouted or amplified speechAbove 91ProfoundUsually cannot understand even amplified speech
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