Transcript ARIZONA T3 HOW TO TRAIN HEARING SCREENERS …

ARIZONA T3 HOW TO TRAIN
HEARING SCREENERS
RENEWAL CURRICULUM:
INTRODUCTION TO
HEARING
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ADHS Hearing Screener
Approval and Renewal
Introduction to Hearing
Prescreening
Referral/Notification and Reporting
Unit(s) specific to the chosen
method(s) of screening
Pass written and practical tests
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Anatomy of the Ear
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Anatomy of the Ear
1.
2.
3.
Pinna
Ear Canal
Tympanic Membrane
(Ear Drum)
4. Ossicles: Hammer
5. Ossicles: Anvil
6. Ossicles: Stirrup
7. Oval Window
8. Eustachian Tube
9. Semicircular Canals
10. Cochlea
11. Cranial Nerve
(Auditory Nerve)
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Infant Auditory Development
Birth to 3 Months
Watch a speaker’s face
Can be soothed by a familiar voice
Make cooing, aaah, or gurgling sounds
Usually stir, wake or cry when someone talks/makes noise
Age 3 to 6 Months
Appear to listen
Awaken easily to sounds
Enjoy noise-making toys
Turn eyes and begin to turn head toward interesting sounds or a
familiar voice
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Age 6 to 12 Months
Use voice to get attention
Begin to imitate speech sounds
Respond to name, even when spoken softly
Look up and turn head towards interesting
sounds or familiar voices
Make many different vocalizations and
babbling sounds, playing with own voice
Respond to common environmental sounds
such as telephone ringing or dog barking
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Language Milestones
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Receptive Language Milestones
Age
Communication Skills
12 months
Follows one-step commands
Responds to own name, no and bye-bye
18 months
Identifies from 1 to 4 body parts
Responds to come here and give it to mommy
24 months
Follows 2 to 3 related commands: Get your ball and throw it to mommy.
Identifies at least 5 body parts
36 months
Identifies objects by use: wash-soap, eat-fork
Recognizes action pictures
Understands basic prepositions: in, out, under
Understands question forms: what and where
Understands negatives: no, not, can’t, don’t
48 months
Follows a series of 2 to 4 related directions
Understands size comparisons like big-bigger
Understands relationships expressed by if-then or because sentences
Begins to understand sentences involving time concepts: We are going to the
zoo tomorrow.
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Expressive Language Milestones
Age
Vocabulary
Syntax
Intelligibility
12 months
2
“Ball”
25%
18 months
10
“Want ball”
50%
24 months
200
“Ball, all gone”
70%
36 months
600
“Gimme my
ball”
80%
48 months
1200
“I gotta big ball
for Kristmas”
90%
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Signs of Hearing Loss
Preschool Age
Must you get close or raise your voice for the child to hear you?
Is the child unable to point to pictures of common objects when
they are named?
Does the child show frustration when not understood?
Is the child unable to carry out 2-3 related directions?
Does the child need to have the volume of music increased
above normal loudness levels?
Is the child easily distracted or does she/he seem withdrawn?
Does the child have a limited vocabulary in relation to his/her
peers?
Do unfamiliar listeners have difficulty understanding what the
child says?
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Signs of Hearing Loss
School Age
Does the child have a limited vocabulary, both expressive and
receptive?
Does the child need frequent repetition of directions or have
trouble following directions?
Does the child often need to have information repeated?
Does the child have difficulty distinguishing between words
that sound alike?
Does the child appear immature in social interactions?
Does the child seem inattentive or appear to daydream?
Does the child have speech, language, or voice problems?
Does the child concentrate on people’s faces and lips when
they are talking?
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Types of Hearing Loss
Conductive
Sensorineural
Mixed Loss
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Causes of Hearing Loss
Type
Causes
Conductive
Fluid
Excessive wax in the ear canal
Hole in the eardrum
Broken ossicle behind the eardrum
Genetic syndromes
Disease
Problems during pregnancy
Diseases after birth
Sensorineural
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Noise, Noise, Noise!
Loudness Level (dB)
Sound
30-60 dB
Soft whisper
Average home interior
Everyday conversation
61-80 dB
Ringing telephone
Kitchen appliances
Busy traffic
Vacuum cleaner
Noisy restaurant
At 80 dB damage can occur in
8 hours of exposure.
80-100 dB
At 90 dB damage can occur in less
than 8 hours of exposure.
100-120 dB
Short exposure can cause
permanent hearing loss.
130-170 dB
Any exposure is dangerous.
Boom box
Dance music
Motorcycle
Power tools
Lawn mower
Personal stereo & headphones
Rock concert
Sandblasting
Automobile horn
Thunder
Jet take-off
Gunfire
180+ dB
Damage is inevitable.
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Prevent Hearing Loss in
Children!
Be alert to hazardous noises in the environment.
Monitor the volume of music.
Prevent infections that can damage hearing.
Be familiar with side effects of medications.
Promote breast-feeding to keep baby’s head elevated
when feeding.
Keep objects out of the ears.
Make sure children receive needed hearing
screenings.
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ADULTS ARE RESPONSIBLE
FOR PROTECTING
CHILDREN’S HEARING!
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