15
Electromagnetic interference (EMI). Some
equipment in home, work, medical, and public
environments can generate EMI that is strong enough
to interfere with the operation of a neurostimulation
system or damage system components. Avoid getting
too close to these types of EMI sources, which include
the following examples: commercial electrical
equipment (such as arc welders and induction
furnaces), communication equipment (such as
microwave transmitters and high-power amateur
transmitters), high-voltage power lines, radio-
frequency identification (RFID) devices, and some
medical procedures (such as therapeutic radiation
and electromagnetic lithotripsy).
Postural changes. Changes in posture or abrupt
movements can change the level of stimulation and
potentially cause unpleasant sensations. Turn
stimulation off or lower the stimulation strength before
stretching, lifting your arms over your head, or
exercising. If unpleasant sensations occur, turn off
stimulation.
Security, antitheft, and radiofrequency
identification (RFID) devices. Some antitheft
devices, such as those used at entrances or exits of
department stores, libraries, and other public
establishments, and airport security screening devices
may affect stimulation. Additionally, RFID devices,
which are often used to read identification badges, as
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