Beurer BC 54, Инструкция по эксплуатации

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blood pressure monitor switches off automatically after
5 seconds.
• If you forget to turn off the device, it will switch off au-
tomatically. In this case too, the value is stored in the
selected or most recently used user memory.
Evaluating the results
General information about blood pressure
• Blood pressure is the force with which the bloodstream
presses against the arterial walls. Arterial blood pressure
constantly changes in the course of a cardiac cycle.
• Blood pressure is always stated in the form of two val-
ues:
– The highest pressure in the cycle is called systolic
blood pressure . This arises when the heart muscle
contracts and blood is pumped into the blood ves-
sels.
– The lowest is diastolic blood pressure , which is
when the heart muscle has completely stretched
back out and the heart fills with blood.
• Fluctuations in blood pressure are normal. Even dur-
ing repeat measurements, considerable differences
between the measured values may occur. One-off or
irregular measurements therefore do not provide reli-
able information about the actual blood pressure. Reli-
able assessment is only possible when you perform the
measurement regularly under comparable conditions.
Risk indicator
The World Health Organization (WHO) has defined the in-
ternationally recognised classification for the evaluation of
measured blood pressure values listed in the table below:
Measured blood
pressure value range
Classification
Colour of
the risk
indicator
Systole
(in mmHg)
Diastole
(in mmHg)
≥ 180 ≥ 110
High blood pressure
stage 3 (severe)
Red
160 – 179 100 – 109
High blood pressure
stage 2 (moderate)
Orange
140 – 159 90 – 99
High blood pressure
stage 1 (mild)
Yellow
130 – 139 85 – 89 High normal Green
120 – 129 80 – 84 Normal Green
< 120 < 80 Optimal Green
Source: WHO, 1999 (World Health Organization)
The risk indicator (the arrow in the display and the as-
sociated scale on the device) shows which category the
recorded blood pressure values fall into. If the measured
values are in two different classifications (e.g. systole in
the high normal category and diastole in the normal cate-
gory), the risk indicator then always shows you the higher
category – “high normal” in the example described.