Interacoustics Sera Additional Information page 49

Problem
High refer rate.
D-0114042-D – 2020/03
Sera™ - Additional Information
Explanation
Screening babies when they
are too active.
Screening babies within a
few hours after birth when
the ear canals are still wet
and possibly occluded with
vernix.
Environment is too
acoustically noisy.
EarCup is not attached or
ear tip is not placed in the
ear properly.
Stimulus is not coming
through the insert earphones
or probe.
Solution
Perform a screening only when the baby is quiet -
preferably sleeping, comfortable, and recently fed.
Screen just after feeding when the mother is still
holding the baby.
Wait to screen until at least 12 hours after birth
when it is more likely that the ear canals are clear.
Switch off all sources of noise such as TVs, radios.
Ask others in the environment to stop talking. Ask
parents to remove noisy siblings from the test
room.
Close the door to reduce noise coming from the
hallway or nearby rooms.
Move away from noise sources such as air
conditioning vents or devices that have motors that
turn on and off.
Make sure that the EarCup is surrounding the ear
and that there are no big gaps between the foam
and baby's skin.
For ear tips, make sure that the ear tip is securely
inserted into the baby's ear canal.
Check the connection of the insert earphone cable
or probe into the preamplifier; remove it and re-
insert it verifying that it is securely attached.
Check the connection of the cable to the Sera
transducer connector.
Check the connection of the insert earphone cable
to the red and blue transducer boxes.
Check the insert earphone adapter to see if it is
cracked or occluded. The insert earphone clear
adapter may need to be cleaned with the adapter
cleaning kit.
Make sure the insert earphone tubes are free of
any crimping or compression; replace the tube with
a new one if damaged.
Replace the insert earphone cable with a new one.
Check the probe tip to ensure it is clear of any wax
or debris in the channels. Clean it or replace it as
needed.
TM
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