Owner's Manual

What
is
an ECG?
How
ScanWatch
obtains
an ECG:
-
ECG,
or
electrocardiogram,
is
the
graphical
representation
of
the
electrical
activity
of
the
heart.
It
can
detect
certain
cardiovascular
pathologies.
-
With
each
heartbeat,
an
electrical
wave travels
through
your
heart. This wave causes
your
heart
to
contract
and
pump
blood.
13
- In a
doctor's
office,
a
standard
12-lead
ECG
is
usually taken. This 12-lead
ECG
records
electrical signals
from
different
angles in
the
heart
to
produce
twelve
different
waveforms.
ScanWatch
measures a
waveform
simil
ar
to
one
of
those
twelve
waveforms.
This
configuration
is
known
as
single-lead
ECG.
- A single-lead ECG is
able
to
provide
information
about
heart
rate
and
heart
rhythm
and enables
classification
of
Atrial
Fibrillation
(AFib).
However, a single-lead
ECG
cannot
be
used
to
identify
some
other
conditions,
like
heart
attacks.
Single-lead
ECGs
are
often
prescribed
by
doctors
for
people
to
wear
at
home
or
within
the
hospital
so
that
the
doctor
can
get
a
better
look
at
the
underlying
rate
and
rhythm
of
the
heart.