HeraMED HeraBEAT, Руководство пользователя

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15
Measurement of the Fetal Heart Rate
4.2 Follow the on-screen instructions, while
maintaining the following:
3.
Hold HeraBEAT TM US steady while
it is searching and measuring.
1.
Make sure there is always a thin
and even layer of gel between
HeraBEAT TM US and your skin.
Note that the gel will dry after
several minutes. Add gel as
required to maintain a thin, moist
layer.
2.
Apply a small amount of pressure
on HeraBEAT TM US against your
skin. Verify full contact during the
entire measurement.
4.3 During the search
Note:
The measurement is sensitive to noises which occur due
to talking, eating, heavy breathing or moving. Please refrain from
these actions during the measurement.
Abdominal activity or fetal movements detected may prolong the
search duration, you may be requested to wait in your current
position to allow the device to locate the fetal heart rate.
At the bottom of the screen a running graph will indicate
device activity.
Next to the graph, a level bar displays the signal level.
Understanding the running graph and signal level:
If you detect a “repetitive waves
pattern” as below, it may be a fetal
heart rate. Wait in this position to
allow for the signal level to rise until
the fetal heart rate is located:
If the running graph displays a
“repetitive spike pattern” as below,
it may be maternal heart rate. Move
the device to search in a different
position:
A momentary “irregular pattern”
followed by a flat line may be caused
by abdominal or other activity. Wait
in this position to allow the data to
stabilize.