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11. What about wireless phone interference with medical
equipment?
Radio frequency energy (RF) from wireless phones can
interact with some electronic devices. For this reason,
the FDA helped develop a detailed test method to
measure electromagnetic interference (EMI) of
implanted cardiac pacemakers and defibrillators from
wireless telephones. This test method is now part of a
standard sponsored by the Association for the
Advancement of Medical instrumentation (AAMI). The
final draft, a joint effort by the FDA, medical device
manufacturers, and many other groups, was completed
in late 2000. This standard will allow manufacturers to
ensure that cardiac pacemakers and defibrillators are
safe from wireless phone EMI.
The FDA has tested hearing aids for interference from
handheld wireless phones and helped develop a
voluntary standard sponsored by the Institute of
Electrical and Electronic Engineers (IEEE). This
standard specifies test methods and performance
requirements for hearing aids and wireless phones so
that no interference occurs when a person uses a
"compatible" phone and a "compatible" hearing aid at
the same time. This standard was approved by the IEEE
in 2000.
The FDA continues to monitor the use of wireless
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phones for possible interactions with other medical
devices. Should harmful interference be found to occur,
the FDA will conduct testing to assess the interference
and work to resolve the problem.
12. Where can I find additional information?
For additional information, please refer to the following
resources:
FDA web page on wireless phones
(http://www.fda.gov/cdrh/phones/index.html)
Federal Communications Commission (FCC) RF Safety
Program
(http://www.fcc.gov/oet/rfsafety)
International Commission on Non-lonizing Radiation
Protection
(http://www.icnirp.de)
World Health Organization (WHO) International EMF
Project
(http://www.who.int/emf)
National Radiological Protection Board (UK)
(http://www.nrpb.org.uk/)
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