these levels are amplified by a hearing aid, the same kind of damage can
occur in as little as 30 seconds.
To avoid any such risks when conducting an REM test, make certain that
the thresholds of the hearing aid have been set correctly, if necessary after
running the MPO (Maximum Power Output) test using the relative function
included in the Maestro software application (refer to Maestro – Fitting and
hearing aid test functionalities – User Manual). At all events, the software
includes an option for checking that UCL (UnComfortable loudness Level)
values attributed to the patient are not exceeded for a given length of time,
which interrupts the sound output if such a situation should occur (refer to
Maestro – Fitting and hearing aid test functionalities – User Manual for
directions on how to enable or disable this option). If the user has an
audiometer license, it is possible to determine the UCL thresholds for the
patient (refer to Maestro – Impedance audiometry functionalities - User
manual).
During the course of an audiometry test, the system will prompt for further
confirmation before the intensity of the sound emitted can be increased to a
level higher than 100 dB HL.
When conducting REM tests at high levels, used to verify the limits of the
hearing aid (as in the case of MPO), the duration of the emission must not
exceed 15 seconds.
It is important to remain watchful for any adverse reaction of the patient, so
that action can be taken swiftly if clear signs of discomfort or pain are
shown during the course of the test, either interrupting the signal at source
or distancing the transducer from the test area.
1.6
D
ISPOSAL
Like any other electronic device, the Trumpet contains certain extremely
hazardous substances such as cadmium or mercury, albeit in extremely
small proportions. If released into the normal refuse collection system
without suitable preliminary treatment, these substances can cause serious
damage to the environment and to health. At the end of its service life,
accordingly, each component of the device must go through a sorted
collection process.
This means that the user should deliver (or despatch) waste items to the
sorted collection centres set up by local authorities, or alternatively, hand
them back to the dealer when purchasing a new appliance of the same or
similar type.
6
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