Insight into behavioral benchmarks, risk indicators, and hearing tests
Three million children under the age of 18 have some hearing loss including four out of every thousand newborns. So, every parent and caregiver should be watchful of the signs of hearing loss in his/her child and seek a professional diagnosis. Hearing loss can increase the risk of speech and language developmental delays.
Indicators for hearing loss
Newborn (birth to 28 days of age)
Infant (29 days to 2 years)
Response to the environment
(speech and language development)
Newborn (Birth to 6 Months)
Infant (3 months to 2 years)
Hearing tests: How, when, and why
If you suspect that your child may have hearing loss, discuss it with your doctor. Children of any age can be professionally tested.
Tests for newborns and infants under one year
Hearing tests are painless, and they normally take less than half-an-hour.
Newborns are tested with either the otoacoustic emissions (OAE) test or the automated auditory brainstem response (AABR) test. During the OAE test, a microphone is placed in the baby’s ear. It sends soft clicking sounds, and a computer then records the inner ear’s response to the sounds. In the AABR test the child must wear earphones. Sensors are placed on his/her head to measure brain wave activity in response to the sound.
For infants over six months of age, the diagnostic auditory brainstem response and the visual reinforcement audiometry (VRA) tests are commonly used. The diagnostic auditory brainstem response test is similar to the AABR test, but it provides more information. The VRA test presents a series of sounds through earphones. The child is asked to turn toward the sound, then he/she is rewarded with an entertaining visual image.
Tests for older children and adults
Children between two and four years old are tested through conditioned play audiometry (CPA). The children are asked to perform a simple play activity, such as placing a ring on a peg, when they hear a sound. Older children and adults may be asked to press a button or raise their hand.
All children should have their hearing tested before they start school. This could reveal mild hearing losses that the parent or child cannot detect. Loss of hearing in one ear may also be determined in this way. Such a loss, although not obvious, may affect speech and language.
Hearing loss can even result from earwax or fluid in the ears. Many children with this type of temporary hearing loss can have their hearing restored through medical treatment or minor surgery.
In contrast to temporary hearing loss, some children have nerve deafness, which is permanent. Most of these children have some usable hearing. Few are totally deaf. Early diagnosis, early fitting of hearing aids, and an early start on special educational programs can help maximize the child’s existing hearing.
Please note that this leaflet is not a substitute for an ear examination or a hearing test.
What you should do
If you have checked one or more of these indicators, your child might have hearing loss and you should take him or her for an ear examination and a hearing test. This can be done at any age, as early as just after birth.
If you did not check any of these factors but you suspect that your child is not hearing normally, even if your child’s doctor is not concerned, have your child’s hearing tested by an audiologist and when appropriate, have his or her speech evaluated by a speech and language pathologist. The test will not hurt your child.
Otolaryngology (pronounced oh/toe/lair/in/goll/oh/jee) is the oldest medical specialty in the United States. Otolaryngologists are commonly referred to as ENT physicians.
|1546||Account published of first documented successful tracheotomy|
|1806||Dutrochet introduces concept of vocal cord movement|
|1898||Carbon-type hearing aid first produced|
|1924||Otolaryngology specialty board (second such board in U.S.) is formed|
|1984||FDA approves first cochlear implant for marketing|
|1988||First wearable digital signal processing hearing aid produced|
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