Diagnostic Services Available

Sending your patients to ONDC with a written referral will enable them to obtain a medicare rebate for the diagnostic services they require.

Diagnostic Services

Pure Tone Audiometry (PTA) --  full diagnostic hearing test including air conduction and bone conduction audiometry allowing differentiation between conductive, sensorineural and mixed losses.
Including -- pre- & post- employment audiograms and pre- & post- operative audiograms.

Play Audiometry (≥ 5yrs old) – modified hearing test for children 5yrs and older as required.

Speech Discrimination Testing – assessing the inner ear's ability to hear speech clearly. This may assist in the determination of site of lesion as well as assessing potential hearing aid candidacy.

Impedence Audiometry – assessment of middle ear status via testing of eardrum compliance and middle ear pressure.

Acoustic Reflex Testing – extended range of ipsilateral & contralateral stapdial muscle reflexes. Results may provide or help to confirm information regarding site of lesion in the peripheral and central auditory system.

Otoacoustic Emissions – assessing the functioning of outer hair cells of the inner ear.

Auditory Brainstem Evoked Responses (ABR) – evoked responses measured in the detection of auditory nerve and brainstem lesions.

Electrocochleography – assessment of endolymphatic hydrops of the cochlea (Meniere’s disease).

Vestibular Myogenic Potentials (VEMPS)
– cVEMPs (cervical vestibular evoked myogenic potential) assesses the saccule and the inferior vestibular nerve.
-- oVEMPs (ocular vestibular evoked myogenic potential) assesses the utricle and the superior vestibular nerve.

Electronystagmography(ENG)/Videonystagmography(VNG) – a battery of eye movement tests assessing vestibular or neurological dysfunction by determining the presence of involuntary eye movements (nystagmus). It is an objective test of oculomotor and vestibular systems. These tests may indicate central pathology versus peripheral (vestibular) pathology.

Caloric Testing -- bithermal caloric test using warm and cool air to determine unilateral or bilateral weakness of the lateral semicircular canal.

Cortical Evoked Response Audiometry (CERA) – used to help confirm hearing thresholds in patients presenting with non-organic hearing loss.

Head Impulse Test (vHIT) -- assesses the functioning of all 6 semicircular canals independently in patients with peripheral vestibular loss (Lateral, Anterior and Posterior). A quantitative and ear-specfic assessment of the vestibulo-ocular reflex (VOR). Involves small quick movements of the head/neck.

Facial Nerve Testing -- Blink Reflex and Electroneuronography -- to examine the integrity and conductivity of the trigeminal and facial nerve.