Hearing Test Services

Depending on the case, we conduct 5 different types of hearing tests.
  • Pure Tone Audiometry (PTA)
  • Tympanometry (Impedance Audiometry)
  • Oto-Acoustic Emissions (OAE)
  • Brain Evoked Response Audiometry (BERA)
  • Auditory Steady-State Response (ASSR)
Hearing Aid Dealer in Delhi

Pure Tone Audiometry (PTA)

This is a basic hearing test conducted on everyone who reports hearing loss. Often it is important to perform PTA for people who work in call centers and professions which require staying in a noisy environment for long hours every day. There are two tests that have to be performed as part of PTA, i.e. AC (Air Conduction) and BC (Bone Conduction). It is used for diagnosis of conductive hearing loss (middle ear infection, sensorineural hearing loss, as well as mixed hearing loss.
PTA is important to rule out issues such as ear infection, hearing disability, vertigo, and ear blockage while also identifying the degree of hearing loss.

Tympanometry (Impedance Audiometry)

This is a middle ear test performed for patients who complain of ear heaviness and blockage especially during cold and cough to test for infection in the middle ear.
The following are different types of tympanogram results that can be obtained upon performing the test:
  • A – type tympanogram – normal hearing
  • B – type tympanogram – fluid in the middle ear
  • C – type tympanogram – ET dysfunction/ otitis media
  • AS – type tympanogram – Otosclerosis
  • CS – type tympanogram – ET dysfunction with fixation
  • AD – type tympanogram – Flaccid tympanic membrane

Oto-Acoustic Emissions (OAE)

We perform the OAE test to test the outer hair cells of the cochlea. This test is often performed as part of new-born baby screenings (intervention programs) so as to eliminate the possibilities of hearing loss at an early age. The OAE test is increasingly becoming mandatory for all new-born babies and is a painless test which is usually conducted within 24 hours of birth.
OAE is a Fail and Pass test used to identify young toddlers with hearing issues which can often crop up during pregnancy, and early life. If a toddler fails the OAE test twice within a 1-week interval, that is when we go for the BERA test.

Brain Evoked Response Audiometry (BERA)

This is performed to evaluate hearing loss in children or individuals unable to perform the audiometry test. It is usually performed on kids normally between 6 months to 5 years, and those kids who have been deaf since birth. It is an objective test to be done through sedation on those kids who are not responsive to sound and have failed the OAE test.

Auditory Steady-State Response (ASSR)

The goal of conducting the ASSR is to create an estimated audiogram from which details pertaining to hearing and hearing loss as well as aural rehabilitation can be answered. This is a frequency-specific test designed to check the response of the ear to different frequencies.