USING THE OTOWAVE 302+
28
OTOWAVE 302+ INSTRUCTION FOR USE
4.5.3.
REFLEX SETTINGS
Amplivox YouTube video is available for assistance on how to add ipsilateral reflexes to test protocol.
ITEM
DESCRIPTION
DEFAULT(ADULT)
Level Mode:
ONE LEVEL
will only test one single level at the selected frequencies.
MULTILEVEL
will run a threshold reflex test, testing at several levels.
Multilevel
Sequence:
Choose the type of reflex stimulus: ipsilateral only, ipsilateral followed by
contralateral or contralateral only.
Ipsi
Levels:
Choose ipsilateral or contralateral and press the
►
key to confirm the
selection.
Please note:
Depending on the
LEVEL MODE
selection, the
LEVELS
screen will contain different content.
ONE LEVEL:
Use the
S keys
to choose the level of reflex stimulus to apply.
Only one level will be tested in the measurement. The maximum level of
ipsilateral stimulus may be set to maximum 100dBHL; the maximum level
of contralateral stimulus may be set to 110dBHL.
MULTILEVEL:
Use the
S keys
to choose the maximum level of reflex
stimulus to apply and the step size between the levels of the preceding
stimuli. The maximum level of ipsilateral stimulus may be set between
85dBHL and 100dBHL; the maximum level of contralateral stimulus may
be set between 85dBHL and 110dBHL.
100 dB
5 dB steps
Freqs:
Use the
▼
key to scroll through the frequencies available for each of the
ipsilateral and contralateral stimuli (500Hz, 1000Hz, 2000Hz & 4000Hz),
and then the
▲
key to select (
✓
) or deselect (-) the frequencies at which
the reflex stimulus is to be applied. Then press
►
to save the entire
selection.
500, 1K, 2K, 4K
Hz ipsi
Selection:
Select the circumstances when a reflex measurement is to be made
(always, never, only if an admittance peak is found, or only after
confirmation is made at the start of the test sequence).
In cases where an admittance peak has not been established a pressure
of 0daPa is used.
Always
Threshold:
Choose the change in admittance required to signify that a reflex response
has been detected (0.01ml to 0.5ml).
0.03 ml
Auto-Stop:
By default, the reflex test at each frequency will stop at the lowest level
of stimulus that produces a response.
By setting Reflex Auto-Stop to
NO
the Otowave 302+ will test for a reflex
at all selected levels.
Yes
Polarity:
Define the polarity of the reflex graphs, if the reflex is plotted upwards
(
UP
) or downwards (
DOWN
).
Down
Filter:
Select either 2Hz or 1.5Hz.
2Hz is suitable for most circumstances.
If a smoother reflex plot is required for better interpretation 1.5Hz may
be selected.
2 Hz
Defaults:
Reset the reflex settings of the selected profile(s) to its original settings.
