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Warning
•
Always comply with local practice and recommendations for presenting loud stimuli.
Whenever an intensity level exceeds the warning level (> 100 dB HL), a warning message will be shown, and you will be
prompted to decide whether to continue or to move on to the next stimulus type.
9.6
Reflex Threshold testing
This test is supported by MADSEN Zodiac Diagnostic and MADSEN Zodiac Clinical.
You can record a reflex threshold either as a separate measurement or as part of a diagnostic sequence. In Sequence test-
ing, the test automatically suggests the threshold level. Always carefully review this result and adjust it if necessary.
In the following you will find the description for performing reflex threshold testing as a single test. This means that the
sequence function is not enabled.
Reflex Threshold automatically follows the tympanometry sweep if you start the
Sequence testing ► 52
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
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.
Preparing for testing
1. Do as described in
2. Inform the patient about the high stimulus levels in the test.
3. Ask the patient to sit very still and quiet during the test, without moving head or jaw.
4. If contralateral stimulation is used in the test, make sure that both the ipsilateral probe and the contralateral phone
are in place before you start the measurement.
5. If needed, toggle the
Otometrics - MADSEN Zodiac
The sound pressure level in the ear canal increases when you test patients with small ear canals.
).
Preparing for testing ► 36
Ear Selector
to select the ear on which you wish to start the test.
9 Testing with Zodiac Diagnostic or Clinical - Stand-Alone
.
Tymp + Reflex Threshold
sequence (see
59
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