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2. Pure-tone audiometry - Wikipedia

   en.wikipedia.org/wiki/Pure-tone_audiometry

   The shape of the audiogram resulting from pure-tone audiometry gives an indication of the type of hearing loss as well as possible causes. Conductive hearing loss due to disorders of the middle ear shows as a flat increase in thresholds across the frequency range. Sensorineural hearing loss will have a contoured shape depending on the cause.

3. Minimum audibility curve - Wikipedia

   en.wikipedia.org/wiki/Minimum_audibility_curve

   This is not the best threshold found for all subjects, under ideal test conditions, which is represented by around 0 phon or the threshold of hearing on the equal-loudness contours, but is standardised in an ANSI standard to a level somewhat higher at 1 kHz . There are several definitions of the minimal audibility curve, defined in different ...

4. Diagnosis of hearing loss - Wikipedia

   en.wikipedia.org/wiki/Diagnosis_of_hearing_loss

   The severity of a hearing loss is ranked according to ranges of nominal thresholds in which a sound must be so it can be detected by an individual. It is measured in decibels of hearing loss, or dB HL. The measurement of hearing loss in an individual is conducted over several frequencies, mostly 500 Hz, 1000 Hz, 2000 Hz and 4000 Hz. The hearing ...

5. Ototoxicity - Wikipedia

   en.wikipedia.org/wiki/Ototoxicity

   Grade 3: Hearing loss sufficient to indicate aural rehabilitation such as hearing aids and/or speech-language services; Grade 4: Indications of cochlear implant candidacy; Brock's Hearing Loss Grades (as described in the American Academy of Audiology Ototoxicity Monitoring Guidelines from 2009): [8] Grade 0: Hearing thresholds <40 dB at all ...

6. Hearing loss - Wikipedia

   en.wikipedia.org/wiki/Hearing_loss

   Hearing loss is a partial or total inability to hear. [5] Hearing loss may be present at birth or acquired at any time afterwards. [6] [7] Hearing loss may occur in one or both ears. [2] In children, hearing problems can affect the ability to acquire spoken language, and in adults it can create difficulties with social interaction and at work. [8]

7. Hearing test - Wikipedia

   en.wikipedia.org/wiki/Hearing_test

   A complete hearing evaluation involves several other tests as well. [5] In order to determine what kind of hearing loss is present, a bone conduction hearing test is administered. In this test, a vibrating tuning fork is placed behind the ear, on the mastoid process. When the patient can no longer feel/hear the vibration, the tuning fork is ...