The hearing testing equipment for children ( Paediatrics Audiology)
The minimum equipment required by each centre, related
to the priority:
a.
Otoscope for examining the ear canal and ear drum
b. Sound Level Meter for
measuring sound stimuli
c. Play Audiometry in sound proof booth, tools ( blocks in box, marbles in jar)
d. Audiometer
(2 channel diagnostic audiometer able to drive headphones, bone conductor,
insert earphone, external speakers)
e.
Behavioural Observation Audiometry (BOA) with a variety of noise making
toys
(including rattles, xylophones, maracas,
bells)
f. Visual Reinforcement audiometry (VRA), moveable
toys, 2 loud speakers in sound proof
booth
g. Tympanometer ( often not accurate for infants
less than 7 months ), able to measure
acoustic reflexes. Sensitivity Prediction with accoustic Reflexes
(SPAR)
h. Speech test,
open / closed set. Chidren younger than 4½
years old may not do well
i. Otoacoustic
Emissions (OAEs) Machine, it is not hearing test.
Should never
substitute for behavioural tests.
Others :
Electrophysiological Tests, test of cochlear/neural integrity
a. Evoked Response Audiometry (ERA)
b. Auditory Brainstem Response (ABR),
c. Steady
State Evoked Potential (SSEP)
Ultimate goal to obtain behavioural responses
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