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Comprehensive Hearing Tests Guide: Principles and Methods

Learn about air-conduction and bone-conduction tests, the importance of testing hearing, types of tests like speech, tuning fork, Weber, Rinne, Bing, and Schwabach, and interpreting results for sensorineural and conductive hearing issues. Discover how audiometry helps diagnose hearing abnormalities.

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Comprehensive Hearing Tests Guide: Principles and Methods

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  1. Hearing tests

  2. Principles of hearing Air-conduction Bone-conduction

  3. Why do we test hearing • To detect one of major hearing impairment • Senzorineural (perception) • Conductive

  4. Speech test • Loud • Whisper • Tuningfork test • Weber • Rinne • Bing • Schwabach • Audiometry • Objective • Subjective

  5. Speech test • App. 5 meter distance • Eachearmustbe test separately • Patient should repeat 5 words whispered by the doctor, 5 words told loudly • High-frequency words (silence, similarly, sitting) • Low-frequency words (drum, button) Results: lost of high frequencies – perception disease (f.e.presbyacusis) low frequencies – conductive disease (f.e. otitis media)

  6. Tuning fork tests these allow one to distinguish (much more clearly) betweenconductive and sensorineural deafness

  7. Weber´s test • tuning fork is placed on the patient's forehead (or in the middle line) • If the sound lateralizes (is louder on one side than the other), the patient may have either an ipsilateral conductive hearing loss or a contralateral sensorineural hearing loss

  8. Rinne´s test • comparison is made between bone and air conduction • base of a tuning fork is placed to the mastoid area (bone), and then after the sound is no longer appreciated, the vibrating top is placed near the external ear canal (air) • positive Rinne – healthly or perceptive disease • negative – conductive disease

  9. Bing test • fork is struck and placed on the patient's mastoid tip • examiner alternately occludes the patient's external meatus • patient withnormal hearing or a sensorineural loss, he or she will notice a change in intensity with occlusion • patient with conductive hearing loss, he or she will notice no change

  10. Schwabach´s test • compares the patient's bone conduction to that of the examiner's • If the patient stops hearing before the examiner, this suggests a sensorineural loss • If the patient hears it longer than the examiner, this suggests a conductive loss This test is contingent on the examiner having normal hearing..

  11. And audiometry… • Subjective (needs patient verbal response) • Objective (combination wit EEG)

  12. Hearing abnormalities and audiometry Senzorineural impairment Conductive disease

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