11
EN
M-L size
Air connector
Cu
5.2 Common sources of error
Note: Comparable blood-pressure measurements always require the same
conditions! These are normally always quiet conditions.
All eorts by the patient to support the arm can increase the blood-pressure.
Make sure you are in a comfortable, relaxed position and do not activate any of
the muscles in the measurement arm during the measurement. Use a cushion
for support if necessary.
The performance of the automated sphygmomanometer can be aected by
extremes of temperature, humidity and altitude.
Avoid compression or restriction of the connection tubing.
A loose cu causes false measurement values.
With repeated measurements, blood accumulates in the respective arm, which
can lead to false results. Correctly executed blood-pressure measurements should
therefore rst be repeated after a 5 minute pause or after the arm has been held
up in order to allow the accumulated blood to ow away (after at least 3 minutes).
5.3Fittingthecu
Insert air connector into air outlet shown
in left photo and please make sure the
tting of the air connector completely and
properly to avoid air leakage.
a) The distance between the edge of cu
and the elbow should be approx. 2~3cm.
b) Secure the cu with the Velcro fastener,
so that it lies comfortably and not too
tight, whereby no space should remain
between the cu and the arm.
c) Lay the arm on a table, with the palm
upwards. Support the arm a little with a
rest (cushion), so that the cu rests at
about the same height as the heart. Take
care, that the cu lies free. Remain so for
2 minutes sitting quietly, before beginning
with the measurement.
d) Let legs uncrossed, feet at on the oor,
back and arm supported.
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