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20.4.4
ABR Cavity test
ABR cavity tests should be run weekly to ensure that the Otoport is working
correctly.
On selection of
ABR Cavity Test
from the QA Tests Menu, the message
Attach electrode cables to ABR cable tester
will be shown. Attach the
probe snaps to the top of the cable tester as illustrated below then press
OK
. Then the message
Place Probe into Otodynamics Test Cavity.
Press OK to begin test
will is shown.
Follow the instructions in
Probe test
for inserting the probe into the test
cavity (two cavities are required, one to connect the electrode cables and
one to connect the probe). Select
OK
to start the ABR impedance test. All
impedances should show 0 kOhms.
Follow the
Checkfit
and
Test
screen sequences until the test stops. Please
refer to the
ABR Test
chapter for a detailed description of how to perform a
standard test.
Data collected during the
Cavity Test
is analysed against set Stop criteria.
The following table lists all possible test results and gives an explanation of
the circumstances under which each result would be shown.
Test Result
Description
Artefact?
The data collected indicates that there is a possibility
of an Artefact pass when testing with this equipment.
Noisy
The test data collected included too much electrical
noise for the test to complete correctly.
Poor probe fit
The final test stimulus level is outside the stimulus ok Fit
range.
Cavity OK
The data collected is acceptable.
Incomplete
The user ended the test manually.
QA
area
Otoport OAE+ABR
User Manual for Advance and Screener
