Hearing tests

Hearing tests

Pure-tone audiometry
evaluates the hearing threshold, so in the case of hearing loss are able to determine the nature and depth of hearing loss. This study tells us that the cause of hearing loss is located in the middle ear, inner or further parts of the auditory pathway. Such studies are necessary to comply with those exposed at work on the ear-damaging agents (noise, vibration, chemicals).


Impedance audiometry
The measurement of sensitivity of middle ear conductive circuit and pressure in the tympanic cavity. This reflex examination is preventive and screening test of hearing threshold. Specifies the location of the hearing of the middle ear, the inner ear and the auditory nerve. Impedance audiometry is an objective test (does not require the cooperation of the patient), non-invasive and lasting max. 2 minutes. It is recommended to those who have a problem with pressure equalization in an aircraft / dive, in order to determine the possible use of drugs.


Otoacoustic emission
An objective method allows the detection of acoustic hearing. This non-invasive test, based on a very quiet recording the acoustic signal that originates in the cochlea due to contraction of outer hair cells.


Pure-tone audiometry in noise
Threshold Testing done in silence and in noise (white) with respect to various stimulus / noise. Indications: Disorders of auditory perception in noise, suspected hearing loss of central location, diagnosis of disorders of the central auditory processing.


Pure-tone audiometry in free field
The study carried out in a free threshold sound field (with speakers), and usually with and without hearing aids. Indications: assess the quality of the hearing aid selection, evaluation of hearing aid profit.


Threshold of hearing discomfort for white noise
Determines the limit for the unpleasant perception of white noise. Indications: auditory field dynamics evaluation, selection of hearing / hearing aid settings; suspected auditory hypersensitivity.


Threshold of hearing discomfort for white noise  in free field
The term limit for the unpleasant perception of white noise in a free sound field (with speakers). Indications: auditory field dynamics evaluation, selection of hearing / hearing aid settings.


Detrermination of threshold of hearing discomfort in pure tone audiometry
The term limit for hearing unpleasant tones 1, 2, 4 kHz. Indications: auditory hypersensitivity, tinnitus, selection and hearing aid settings.


Speech audiometry
Rating understanding of words (in terms of various parameters) evaluated the speech audiometry, eg a threshold level of speech discrimination, etc. Indications: Hearing social efficiency rating, location differential diagnosis of hearing loss, to determine the indications for hearing aid, to evaluate the potential benefits of implementing hearing aid, ringing in the ears; law unions.


Speech audiometry in noise
Evaluation of understanding of the words without the noise at different signal / noise ratio. Indications: The differential diagnosis of hearing loss, hearing assessment of social efficiency, to evaluate the potential benefits of implementing hearing aid


Speech audiometry in free field
Evaluation of understanding speech – words in a free sound field. Assessment and understanding of the words without the hearing aid and determine the% gain understanding of the words. Indications: basic research in the evaluation of hearing aid selection of quality, pre-assessment hearing aid settings.


Speech audiometry in free field in noise
Evaluation of understanding speech – words in a free sound field. Assessment and understanding of the words without the hearing aid and determine the% gain understanding of the words. Indications: basic research in the evaluation of hearing aid selection of quality, pre-assessment hearing aid settings.


SISI attempt
Assessment of severity of the short growth rate (1 dB), performed at 1 kHz and for two selected frequencies where hearing loss is observed. Indications: The differential diagnosis of hearing impairment receiving location, confirm the location of the worm hearing, auditory sensitivity.


Decay test
Rating decay time of pure tone hearing for different levels above threshold, made at 1 kHz, and the second selected frequency observed in the hearing. Indications: location differential diagnosis of hearing impairment; suspected location of the receiving damage hearing, ringing in the ears.


Tympanometry
vulnerability assessment of the eardrum rating the presence of ipsilateraly reflex of stapedius. Indications: The differential diagnosis of hearing loss, conductive hearing loss, assessment of the middle ear, otitis media with effusion; eardrum injuries, invisible perforations, obstruction hearing trumpets, tinnitus, inflammation, acute and chronic middle ear, as a preliminary study for the interpretation of the issue otoacoustic-exclusion of sound conduction disturbances.


Functional test of of assesment of hearing trumpet patency
The evaluation of hearing trumpets made in overpressure and vacuum. A study carried out before and after shrinking nose (anemia). Indications: Functional assessment of auditory function trumpets, periodic, persistent auditory dysfunction trumpets; barotrauma such as when flying, scuba diving, ringing in the ears; assess the impact of nasal patency disorders on the function of the middle ear, recurrent otitis media.