Otodynamics Otoport Lite, Руководство пользователя, Страница: 149 / 208

Otoport OAE+ABR
User Manual for Otoport Lite model
149
Quality checks
14.5
Real ear test
Testing with a known good ear allows for test data to be checked for
reproducibility.
Before starting a real ear test, change the
Test Settings Display
to
Circles (see chapter
11
Configuration ). This will help when comparing
results for reproducibility.
A test may then be performed using the standard test procedure on the
known good ear. This result may then be compared with previous results
from the same ear. Real ear tests should be performed in similar test
environments to be comparable.
Some adult ears with no significant hearing loss produce little or no
TEOAE. If possible the Real Ear Test should be performed on an ear
which is known to have strong TEOAEs.
If you are unable to achieve a Real Ear OK result in an ear which is known
to have OAEs then:
• Check the subject has no middle or outer ear problems, such as a cold or
wax blockage, which might prevent OAE recording.
• Check a good probe fit has been achieved.
• Check that the probe is not blocked.
• Check the probe still passes the probe calibration test (see above).
• Try recording emissions from another subject.
If you are still unable to achieve a Real Ear OK result then, if the resources
are available try recording with a different probe or with a different Otoport.
If the problem persists, contact your dealer or Otodynamics.