Audio Traveler AA222, Operation Manuals, Page: 60 / 141

AA222 Operation Manual Page 60
Press “Store” (24) to store the manual reflex decay. AA222
automatically prepares for performing another manual reflex decay.
In Figure 21 an example of the decay test result can be seen. The
decay result is expressed graphically and numerically in percent (%).
When a reflex decay test has been accepted and stored it will be put
into one of the small reflex boxes. A small “D” (see figure 23) will
indicate that a Decay test has been performed.
Figure 23:
By storing the test result the instrument automatically prepares for
performing another manual reflex or reflex decay test.
Eustachian Tube Function
With AA222 it is possible to perform a Eustachian Tube Function test
for non-perforated ear drums, the so-called Williams Test. With
AA222 the test is semi automatic and will suggest the operator how
to operate the instrument and how to instruct the patient.
To choose the Eustachian Tube Function test press the “ETF” key
(11).
In the Eustachian Tube Function test mode the indication light on the
“ETF” key (11) will be active and at the same time the indication light
on the “Pause” key (9) will start blinking in order to tell the operator
that his/hers action is now needed.
1.
Select test ear by means of “Right” (19) or “Left” (20).
2. Place the probe in the test ear.