Madsen Zodiac User Manual page 31

On-screen selections
Curve selection
Set frequency, ipsi and contra
Set threshold
9.8.2 Reflex Decay testing
Warning
•
period of time. Make sure that there are no contraindications for performing the test.
Note When you select a special test, the
•
pressing the
Note
• It is recommended that you perform a tympanometric test before making any acoustic reflex measurement,
and determine the acoustic reflex threshold before making a reflex decay measurement.
Starting the test
1. Press the
Reflex Decay
2. Select
3. The Reflex Decay
decay will light up on the buttons, e.g.
4. Use the dial to set the stimulus level. The level is shown in the gray on-
line values area of the display.
5. Prepare the patient for the high sound levels in the test. A measurement
takes about 10 seconds.
6. Ask the patient to sit very still and quiet during the test, without moving
head or jaw.
7. Press the
8. If needed, repeat these steps until you have collected the desired meas-
urements.
Warning
interrupted immediately. Already measured results are kept.
Otometrics - MADSEN Zodiac
Use the soft-buttons
tion curve.
Use the settings buttons to select and navigate in order to view curve results.
Use the soft-buttons
tion curve you wish to select as threshold. Press
The Reflex Decay test is a supra-threshold test, where the stimulus levels are very high for an extended
Tymp
button, or by pressing the
Special button.
.
view is shown and the preselected settings for reflex
Start/Stop
button to start the test for the preset stimulus.
If the patient is troubled by the test, stop the test. The test is
•
Previous Curve
Previous Curve
Special button will remain lit until you deselect the special test, e.g. by
Special
button a second time.
Contra , 0.5 k Hz.
Next Curve
or to highlight a desired deflec-
Next Curve
or to highlight a desired deflec-
Set Threshold
to select.
User Guide
31