MADSEN Alpha OAE+ Screener User Manual
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5.4.2
TEOAE test
If Child Mode is activated, an animated car is displayed on the screen during testing. (See
The progress bar under the animated picture is green if the test conditions are good and it is red if there is too much noise. Noise can come from the
environment or the patient.
If Child Mode is not enabled, test data is shown on the display as the test progresses.
Press
Stop (
)
to stop the test. The test will be saved as an incomplete test.
Test details
Shows which ear is being tested.
A.
Valid peaks
B.
Higher frequency emissions
C.
Lower frequency emissions
The graphic display shows the peaks
reaching the test criteria. The graph is a
statistical graph.
Valid peak
Shows that the intensity of a peak is valid and counted by the peak counter.
Peak counter
The test must register a total of at least 8 valid peaks in alternating directions
(counted both above and below the median line) in order to lead to a
Pass/Clear Response
.
Noise
Current noise level. Make sure the
Noise
level is as low as possible. The Noise bar
turns red when the noise level is over 41 dB SPL. A high Noise level may
indicate a high level of environmental noise or a noisy patient.
Artifact
Shows the average artifact level in percent. The artifact rate (emanating from
noise) should be below 20%, if possible.
If artifacts are present, this may indicate a high level of environmental noise or a
noisy patient. In these cases, check the test conditions and make sure that the
probe fits.
Stability
Shows the average probe stability level in percent. The stimulus
stability (emanating from probe stability) should be above 80%, if possible.
Progress
Shows the time elapsed for the current test frequency. If a
Pass/Clear Response
for the current frequency is not achieved the test frequency will time out. Max.
time depends on environmental noise conditions. If test conditions are optimal
but there is no response measured, then the frequency will time out before the
progress bar reaches the end.
