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radiofrequency energy (RF), the measures
described above would apply to children
and teenagers using wireless phones.
Reducing the time of wireless phone use
and increasing the distance between the
user and the RF source will reduce RF
exposure. Some groups sponsored by
other national governments have advised
that children be discouraged from using
wireless phones at all. For example,
the government in the United Kingdom
distributed leaflets containing such a
recommendation in December 2000. They
noted that no evidence exists that using
a wireless phone causes brain tumors or
other ill effects. Their recommendation to
limit wireless phone use by children was
strictly precautionary; it was not based on
scientific evidence that any health hazard
exists.
11. What about wireless phone
interference with medical
equipment?
Radiofrequency 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 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.
Safety Guidelines