MADSEN Alpha OAE+ Screener User Manual
24
Select or create a patient – and then start a test
1.
Find (
) or add (
) a new patient. (see
2.
Press OK (
). The patient Test Menu appears.
Note: There are 7 DPOAE protocols and 1 TEOAE protocol. The available protocols in the Test Menu depend on Test Settings. To see protocol
details press the protocol name. A Help screen appears.
You can also see the test descriptions in TEOAE test
5.3
DPOAE test
DPOAEs are responses generated by the inner ear to a two-tone stimulation. For each tested frequency, a pair of tones is presented. The tone
frequency presented is called F1 and the level of that tone is called L1. The other tone is called F2 and its level is L2.
5.3.1
DPOAE test protocols
The L1/L2 pair is 65/55 dB SPL. Only F2 is shown.
The test is conducted by measuring the frequencies in decreasing order; the results are displayed with the frequencies increasing from left to
right.
Protocol 1 and Protocol 2
6 kHz
5 kHz
4 kHz
3.5 kHz
3 kHz
2.5 kHz
Minimum DP amplitude equals -5 dB.
A Pass/Clear Response result requires that 4 of the 6 frequencies receive a PASS result.
Protocol 1 stops automatically if 4 frequencies reach a Pass/Clear Response result or 3 frequencies receive a Refer/No Clear Response result.
Protocol 2 tests all frequencies.
Protocol 3 and 4
5 kHz
4 kHz
3 kHz
2 kHz
Minimum DP amplitude equals -5 dB.
A Pass/Clear Response result requires that 3 of the 4 frequencies receive a Pass/Clear Response result.
Protocol 3 stops automatically if 3 frequencies reach a Pass/Clear Response result or 2 frequencies receive a Refer/No Clear Response result.
Protocol 4 tests all frequencies.
