Madsen zodiac, Справочное руководство

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On-screen selections
Curve selection Use the soft-buttons
Previous Curve
or
Next Curve
to highlight a desired deflec-
tion curve.
Set frequency, ipsi and contra Use the settings buttons to select and navigate in order to view curve results.
Set threshold Use the soft-buttons
Previous Curve
or
Next Curve
to highlight a desired deflec-
tion curve you wish to select as threshold. Press
Set Threshold
to select.
9.7 Reflex Decay testing
This test is supported by MADSEN Zodiac Diagnostic and MADSEN Zodiac Clinical.
You can record a reflex decay measurement either as a separate measurement or as part of a diagnostic sequence. In
Sequence testing, the test automatically suggests the stimulus level, which is the reflex threshold level +10 dB.
In the following you will find the description for performing reflex decay testing as a single test. This means that the
sequence function is not enabled.
Warning
•
The Reflex Decay test is a supra-threshold test, where the stimulus levels are very high for an exten-
ded period of time. Make sure that there are no contraindications for performing the test.
Note
•
When you select a special test, the Special button will remain lit until you deselect the special test, e.g. by
pressing the Tymp button, or by pressing the Special button a second time.
Note
•
It is recommended that you perform a tympanometric test before making any acoustic reflex meas-
urement, and determine the acoustic reflex threshold before making a reflex decay measurement.
Note
•
If Reflex Decay is performed as part of a sequence, the following applies: The decay test stimulus level
pre-supposes that there is a reflex threshold available for the ear, stimulus type and stimulus ear (ipsi- or con-
tralateral) that is chosen for reflex decay testing. The decay test stimulus level will then automatically be set to
the threshold level +10 dB. If the reflex has not been determined, the decay measurement will be skipped.
Note
•
There may be a warning that the stimulus level is in the extended intensity range. Reflex decay may not
be possible due to highly elevated threshold levels.
Note
•
To avoid automatic testing being interrupted because of high stimulus intensity levels when reaching the
warning limits, it is recommended that you set the max. intensity to 100 dB HL.
Otometrics - MADSEN Zodiac 63
9 Testing with Zodiac Diagnostic or Clinical - Stand-Alone