Patient presents with severe hearing loss. For the amount of decibel loss he has, which of the following sound can be heard by him?
High-Yield Explanation
WHO CLASSIFICATION Till 25 dB Hz Normal 26 - 40 dB Hz Mild 41 - 60 dB Hz Moderate 61 - 80 dB Hz Severe Over 81 dB Profound Source Decibels Anything on the verge of being Audible 0 Whisper 30 Normal conversation 60 Busy traffic 70 Niagara Falls 90 Train 100 Construction noise 110 Rock conce 120 Machine gun 130 Jet take off 150 Rocket take off 180