Note
•
Accurate testing is only guaranteed if you use the eartips provided.
Note
•
The eartip can be used for both ears. If you suspect infection in one ear, change the eartip and clean the probe
tip, or replace it with a spare, before you continue testing on the other ear.
Warning
•
Using a probe with an unsuitably sized eartip or applying excessive force may irritate the ear canal.
Note
•
In case of a probe error, make sure that the probe tip channels are clear (see
)
and that the probe is connected.
See also
.
4.4.3
Inserting the probe with eartip in the patient’s ear canal
1. When you have fitted an eartip on the probe, gently pull the pinna back and slightly
down and insert the probe in the ear canal, with a slight pressure, twisting the probe
slightly as you insert it.
Verify visually the correct fitting.
The probe can be inserted with the probe cable pointing either upwards or down-
wards, depending on which direction fits best.
Make sure that the probe fits well. Any leakage may increase the test duration
because of sound leakage, excessive noise or both.
Attach the clip to the patient's clothing or bedding to secure the probe cable.
Note
•
Make sure that the cable is not in contact with any vibrating surfaces during testing.
Warning
•
In case of ear or ear canal trauma, don’t start any measurements.
2. If you have selected an ABR test, you must also fit the electrodes correctly. See
Placing the electrodes for ABR testing
.
4.4.4
Placing the electrodes for ABR testing
Skin preparation
Note
•
Do not use alcohol pads or other cleaning agents that contain alcohol to prepare the skin as they may cause
the skin to dry out, leading to a higher skin impedance.
32
Otometrics - MADSEN AccuScreen
4 Preparing for testing
