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HEARING TEST
he evaluation of the hearing sensitivity of a person’s sense of hearing and is most often performed by an audiologist.
WE OFFER COMPLETE DIAGNOSTIC HEARING EVALUATION SERVICES.
Hearing tests are used to assess your ability to hear different sounds and to determine if there are any problems.
Hearing is evaluated in patients of all ages, from newborn through geriatrics. The patient is seated in a soundproof room during testing to ensure accurate test results. Using a variety of clinical tools, which may consist of pure-tone testing, speech audiometry and impedance testing etc, the audiologist will determine a patient’s hearing acuity.
If hearing loss is present, proper follow-up will be recommended by the audiologist. There are several tests audiologists use to measure hearing and hearing loss:
Pure tone audiometry is a hearing test used to determine the presence or absence of hearing loss. If hearing loss is present, the audiologist will be able to determine both type and degree of hearing loss.
You will be seated in a soundproof room, with headphones on or inserts in your ears, and a bone conduction headband on your head. Audiologist will be seated on the outside of the sound booth and manipulate the audiometer while testing your hearing.
Audiologist will first test to see if you are able to hear a variety of different pitches and determine the minimum intensity that you can hear. You will be asked to push a button or raise your hand when you hear the different tones. The result will be plotted on audiogram. Audiologist will compare the result to determine which part of your auditory system is responsible for the loss.
How long does the test take?
20-30 minutes
How will I receive my results?
Audiologist will review your test results with you within 10-15 minutes after when your testing is completed.Depending on your result, audiologist will recommend further testing, an ENT consult, or discuss the possibility of using hearing aid technology to improve your hearing.
It includes speech tests that determine how softly you are able to hear words and how clearly you are able to understand words.
You will be seated in the sound booth and will be wearing headphones. Audiologist will ask you to repeat a list of words to determine your Speech Reception Threshold (SRT) \ Speech Discrimination or Word Recognition ability. Speech Discrimination ability is typically measured as a percentage score
How long does the test take?
20-30 minutes
How will I receive my results?
The audiologist will share your test results with you within 10 minutes after the completion of testing.
Tympanometry is not a hearing test but a procedure that can show how well the eardrum moves when a soft sound and air pressure are introduced in the ear canal. It’s helpful in identifying middle ear problems, such as fluid collecting behind the eardrum. The acoustic reflex test how well the ear responds to loud sounds by evoking a reflex. In a healthy ear, this reflex helps protect the ear against loud sounds.
You will be seated in the sound booth and will be wearing headphones. Audiologist will ask you to repeat a list of words to determine your Speech Reception Threshold (SRT) \ Speech Discrimination or Word Recognition ability. Speech Discrimination ability is typically measured as a percentage score
How long does the test take?
10-15 minutes
How will I receive my results?
The audiologist will share your test results with you within 10 minutes after the completion of testing.
THE AUDITORY BRAINSTEM RESPONSE TEST IS USED FOR TWO PURPOSES:
• For assessment of hearing thresholds in specific populations, such as children
• To assess the functional status of the auditory neural pathway
This test is non-invasive and is performed with recording electrodes placed on the forehead and ears. The audiologist will analyze recordings of electric potentials generated by the auditory neural pathway.
This procedure is performed while the patient is lying down in the sound booth. The patient is required to be still and quiet throughout the test; therefore some infants and small children may require sedation.
How long does the test take?
60-120 minutes.
How will I receive my results?
The audiologist will share your test results with you within 15-30 minutes at the completion of testing.
The Otoacoustic Emission test is an objective test, which measures hair cell function in the inner ear. An emission is a sound generated within the normal cochlea in response to stimulation. OAE testing is used for a number of reasons, including screening of infants and other special populations.
This is a non-invasive test which requires a small plug to be inserted in the ear and a series of tones or clicks are presented to the patient. The test takes place in the sound booth and the patient is required to be still and quiet throughout testing.
How long does the test take?
30-minutes
How will I receive my results?
The audiologist will share your test results with you within 15 minutes at the completion of testing.
This test is similar to the ABR, and uses the same tiny earphones and small electrodes. This CAEP test allows the audiologist to see if the pathways from the brainstem to the auditory cortex are working properly. The audiologist may recommend a CAEP test for some specific types of hearing loss. This test can be done at any age and does not require participation from the child.
It can also be used as an objective test to assess the benefit of amplification (hearing aids/ cochlear implant) for children.
How long does the test take?
60 -75 minutes.
How will I receive my results?
The audiologist will share your test results with you within 30 minutes at the completion of testing.
An aided audiogram is obtained in essentially the same way as a standard audiogram but with hearing aids/ cochlear implant on. Sounds are presented in the sound suite or booth, and the child’s responses to increasingly softer sounds are recorded; the main difference is that the sounds are presented through speakers because the child is wearing his or her amplification. For infants and young children, these responses might be a head turn towards the source of the sound; for older children, these responses might be putting a block in a bucket or raising a hand when sounds are presented. Obtaining a complete aided audiogram requires a significant amount of time during which the child needs to be paying close attention.
The results will be plotted on an audiogram comparing with the unaided results and speech banana. It gives information regarding hearing aid selection during hearing aid trial, need of reprogramming / benefit with hearing aid or candidacy for cochlear implant.
How long does the test take?
20 to 25 minutes.
How will I receive my results?
Your audiologist will review your test results with you within 10-15 minutes after when your testing is completed.
ASSESSMENT IN CHILDREN
In the first few years of life, hearing is a critical part of kids’ social, emotional, and cognitive development. Even a mild or partial hearing loss can affect a child’s ability to develop speech and language properly.
For giving you the most natural hearing experience, hearing aids are now equipped with digital technology with most advanced features. Each ones hearing is unique! Digital hearing aids allow programming to suit your hearing loss and comfort.
The sooner hearing loss is discovered and effectively managed, the better are the prospects for your child and family. While babies with normal hearing develop the ability to sense sounds in the womb and are exposed to sounds and language immediately, babies born with hearing loss are deprived of auditory stimulation until the hearing loss is discovered and appropriately managed. Research shows that the earlier intervention is started, the better are the prospects for the child to develop at an age-appropriate rate. Because of all these reasons, early diagnosis is of paramount importance for you and your child.
Your newborn should have a hearing screening before being discharged from the hospital. It can be carried out even when the baby is two days old. If your baby doesn’t have this screening, it’s important to have a hearing screening within the first 3 weeks of life.
If your baby does not pass the initial hearing screening, it doesn’t necessarily mean there’s a hearing loss but it’s important to get a retest within 3 months so treatment can begin right away. Treatment for hearing loss can be the most effective if it’s started before a child is 6 months old.
Kids who seem to have normal hearing should continue to have their hearing evaluated at regular doctors’ appointments. Hearing tests are usually done at ages 4, 5, 6, 8, and 10, and any other time if there’s a concern.
Hearing loss can occur if a child:
* was born prematurely.
* stayed in the neonatal intensive care unit (NICU).
* had newborn jaundice with bilirubin level high enough to require a blood transfusion.
* was given medications that can lead to hearing loss.
* has family members with childhood hearing loss
* had certain complications at birth
* had ear infections
* had infections such as meningitis or cytomegalo virus.
* has family members with childhood hearing loss
* Exposed to very loud sounds or noises, even briefly the incubator noise.
CHECK OUT THE STUDY DONE BY WORLD HEALTH ORGANIZATION(WHO) DEPICTED BELOW.
* Most newborn infants startle or “jump” to sudden loud noises.
* By 3 months, a baby usually recognizes a parent’s voice.
* By 6 months, a baby can usually turn his or her eyes or head toward a sound.
* By 12 months, a baby can usually imitate some sounds and produce a few words, such as “Mama” or “bye-bye.”
AS YOUR BABY GROWS INTO A TODDLER, SIGNS OF A HEARING LOSS MAY INCLUDE:
* limited, poor, or no speech.
* frequently inattentive.
* difficulty learning.
* seems to need higher TV volume.
* fails to respond to conversation-level speech or answers inappropriately to speech.
* fails to respond to his or her name or easily frustrated when there’s a lot of background noise.
Behavioral and objective methods can be used to test hearing, depending on a child’s age, development, and health status. Behavioral methods include Behavioral Observation Audiometry, Conditioned play Audiometry, Standard audiometry.
During behavioral tests, an audiologist carefully watches a child respond to sounds like calibrated speech and pure tones. An audiologist knows whether an infant or toddler is responding to the sounds by his or her eye movements or head turns (Behavioural Observation Audiometry). A preschooler may move a game piece in response to a sound (Conditioned play Audiometry), and a schooler may raise a hand (Standard audiometry). Children can respond to speech audiometry with activities like identifying a picture of a word or repeating words softly.
OTHER TESTS TO EVALUATE HEARING (OBJECTIVE TESTS)
If a child is too young to get behavioral hearing testing, or has other medical or developmental problems to prevent this type of test, we can check for hearing problems by looking at how well the ear, nerves, and brain are working. These include:
Tympanometry assists in the detection of fluid in the middle ear, perforation of the eardrum, or wax blocking the ear canal. The tympanogram is often recorded when children have middle ear infections.
Acoustic reflex measures add information about the possible location of the hearing problem.
For this test, tiny earphones are placed in the ear canals and small electrodes (sensors which look like small stickers) are placed behind the ears and on the forehead. Usually, clicking sounds are sent through the earphones, and the electrodes measure the hearing nerve’s response to the sounds.
Young infants under 6 months can sleep for the entire test, but older infants may need sedation for this test. Older cooperative kids can do this testing in a silent environment while they’re visually occupied. Normal hearing has a certain appearance when test results are measured on a chart. Deviations are analyzed by the audiologist for proper diagnosis.
This test is similar to the ABR, though an infant usually needs to be sleeping or sedated for the ASSR test. The advantage of this test gives frequency specific information.
If you believe your child is experiencing a hearing loss, consult with your physician or an Audiologist professional at the earliest possible date. Timely testing, diagnosis and treatment provide the best course of action to ensuring the highest quality lifetime Sound Experience for your child.
* In many cases, hearing aids designed especially for children with a diagnosed hearing loss offer significant benefit. The correct hearing aid must be chosen individually for each child and will depend on various factors such as the degree of hearing loss and the needs of the child. Hearing aids are fitted individually by a pediatric audiologist.
* Assistive listening devices, known as personal wireless microphone systems, can also be used to supplement hearing aids. The system includes a microphone worn by the child’s parent or teacher and a receiver fitted onto the child’s hearing aid. This system enables the child to clearly understand speech even over further distances or in situations with loud background noise.
* If a hearing aid does not offer sufficient help, a cochlear implant (CI) may be an effective choice.