Otolaryngology Book

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Audiogram

Aka: Audiogram
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  1. Indications
    1. Hearing Testing
    2. Hearing Loss Evaluation
  2. Technique
    1. Hearing is tested in each ear at frequencies between 250 Hz to 8000 Hz
    2. Frequencies tested at one octave intervals: 250 Hz, 500 Hz, 1000 Hz, 2000 Hz, 4000 Hz, 8000 Hz
    3. Each frequency is tested at volumes between 0-90 decibels (logarithmic, loudness doubles every 10 decibels)
  3. Interpretation
    1. Normal hearing
      1. All frequencies are heard at 20 decibels or less
    2. Hearing Loss across all frequencies
      1. Otosclerosis (typically 40 DB loss)
    3. Low frequency Hearing Loss
      1. Meniere's Disease (severe)
    4. High frequency Hearing Loss
      1. Noise-Induced Sensorineural Hearing Loss (4000 Hz and higher)
      2. Age-related Hearing Loss - Presbycusis (2000 Hz and higher)
  4. Resources
    1. Audiogram of normal sounds
      1. http://www.nmit.edu.au/Content/images/centre_of_excellence/frequency_intensity_of_sounds.jpg

Hearing Tests (C0018786)

Definition (NCI) A graphic record of the softest sounds that a person can hear at various frequencies, used to measure hearing loss.
Definition (CSP) a general term for the measurement of hearing.
Concepts Diagnostic Procedure (T060)
MSH D006320
ICD9 95.42, 95.47
SnomedCT 148632000, 398171003, 252575000, 32921008, 398280008, 34091002, 141914007, 164745006
English HEARING EXAM, Hearing Tests, Hearing examination, NOS, Clinical test of hearing, NOS, Hearing Test, Test, Hearing, Tests, Hearing, Auditory acuity evaluation, NOS, Audiogram, NOS, examination of hearing, examination of hearing (physical finding), hearing, hearing tests, hearing exam, Individual hearing examination (procedure), Clinical hearing test, Hearing examination NOS, clinical hearing tests, audiograms, exams hearing, Test;hearing, auditory tests, auditory test, audiogram, hearing testing, auditory testing, hear test, hearing examination, Hearing test, Hearing examination, Clinical test of hearing, Auditory testing, Individual hearing examination, Audiogram, HT - Hearing test, Hearing examination (procedure), Audiogram (procedure), Auditory acuity evaluation (procedure), Auditory acuity evaluation, Auditory testing (procedure), Hearing examination, not otherwise specified, hearing test
Italian Audiogramma, Test dell'udito, Esami audiometrici
Dutch gehoortest, audiogram, Gehoortest, Gehoortests, Test, gehoor-
German Hoertest, Audiogramm, Hörprüfungen, Hörtests
Portuguese Prova de audição, Audiograma, Testes Auditivos
Spanish Prueba de audición, Auditory testing, Individual hearing examination, audiograma (procedimiento), audiograma, evaluación de agudeza auditiva (procedimiento), evaluación de agudeza auditiva, evaluación de la agudeza auditiva, examen audiológico (procedimiento), examen audiológico, examen de la audición (procedimiento), examen de la audición, prueba auditiva (procedimiento), prueba auditiva, prueba clínica de la audición, Audiograma, Tests Auditivos, Pruebas Auditivas
Japanese 聴力図, 聴覚検査, ﾁｮｳｶｸｹﾝｻ, ﾁｮｳﾘｮｸｽﾞ
Swedish Hörseltester
French Test d'audition, Tests auditifs, Tests de l'audition, Audiogramme
Czech sluchové testy, Test sluchu, Audiogram
Finnish Kuulokokeet
Russian SLUKHOVYE TESTY, СЛУХОВЫЕ ТЕСТЫ
Croatian SLUH, ISPITIVANJE
Polish Badanie słuchu, Testy słuchu, Próby słuchowe
Hungarian Audiogram, Hallás vizsgálat
Sources
Derived from the NIH UMLS (Unified Medical Language System)


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