What is ENT - What does it mean to have regular hearing?
Hearing that is normal for an adult ranges between 0 and 20 dB HL. Hearing is evaluated based on a patient's threshold responses, where a threshold is described as the dB HL level at which a patient perceives a sound stimulus fifty percent of the time. Audiograms of patients who have hearing loss typically have sensitivities that are higher than 20 dB HL. Degrees of Hearing Loss DEGREE OF HEARING LOSS HEARING LEVEL RANGE (dB HL) Normal − 10 to 15 Slight 16 to 25 Mild 26 to 40 Moderate 41 to 55 Moderately severe 56 to 70 Severe 71 to 90 Profound 91+
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