otometrics AccuScreen ABR, Руководство пользователя, Страница: 50 / 110

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Otometrics
Tests
The ABR test
Incomplete test
5.5 The ABR test
The ABR tests are identical, except for the dB level at which the tests are performed.
The level is indicated by the name of the tests:
ABR 35
,
ABR 40
, and
ABR 45
.
Caution · Mobile phones, electrically controlled tables or desks and other such devices
may issue noise that can influence ABR measurements and lead to false referrals. Make
sure that you carry out testing away from such sources of noise.
5.5.1 Starting the test
1. Place the electrodes on the patient to ensure that they have time to connect well
to the skin, for instance while you explain the test process to relatives.
2. Connect the electrode cable.
3. Fit the probe or the ear couplers with the ear coupler cable. The ABR display
changes automatically.
4. Decide on which ear you wish to perform the test, and prepare the patient as
described in 4 Preparing for testing
X
29 .
If the test was stopped, an error message is shown.
The result screen appears differently from the one
shown, if the test failed or was aborted during cal-
ibration.
Testing one ear
• To start the test, press the
Start
button that is
next to the
ABR
test, and that corresponds to
the ear in which you placed the probe.