What is ENT - Can you explain what an audiogram is?
An audiogram is generated by comparing a relative measurement of the patient's hearing to a predetermined "normal" number. This comparison is what gives the audiogram its relative dimension. It is a graphical representation of auditory threshold responses that are acquired from testing a patient's hearing with pure-tone stimuli. These responses are shown on a threshold curve. The minimal intensity at which a patient perceives a sound stimulus fifty percent of the time is referred to as the auditory threshold for that patient. The frequency, which is measured in cycles per second or hertz (Hz), and the intensity, which is measured in dB HL, are the characteristics that make up the audiogram. Establishing hearing thresholds for single-frequency sounds at 250, 500, 1000, 2000, 4000, and 8000 Hz are used to create the standard audiogram. The predominant speech frequencies are 500, 1000, 2000, and 4000 Hz. It is also standard practise to measure frequencies of 3000 and 6000 Hz, which are known as interoctave frequencies.
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