Beurer BM 28 Instructions For Use Manual page 35

symbol (haemodynamic stability) appears in the display
and the measurement can be recorded as a reliable blood
pressure at rest value.
Haemodynamically stable
The systolic and diastolic pressure measurements have
been recorded when the circulatory system is sufficiently at
rest and are a very reliable indicator of resting blood pres-
sure.
1
However, if there is an indication that the circulatory system
2
is not sufficiently at rest (haemodynamic instability), the
symbol appears in the display. In this case, the measure-
ment should be repeated after a period of physical and
mental rest. The blood pressure measurement must be
taken when the patient is physically and mentally rested, as
1
it will be the basis for diagnosing the blood pressure level
2
and therefore regulating the patient's medical treatment.
Lack of haemodynamic stability
It is very probable that the systolic and diastolic blood pres-
sures have been measured whilst the patient was not at rest
and the measurements therefore deviate from the blood
pressure at rest. Repeat the measurement after a minimum
period of 5 minutes' rest and relaxation. Go to a sufficiently
quiet and comfortable spot and remain there calmly; close
your eyes, breathe deeply and evenly and try to relax. If
1
the next measurement also shows insufficient stability, you
can repeat the measurement after another resting period.
If the measurements continue to show some instability,
identify these blood pressure measurements as having been
taken when the circulatory system had not been sufficiently
rested. In this case, nervousness or inner anxiety may be
the cause and this cannot be cured by brief periods of rest.
Existing cardiac arrhythmias may also prevent a stable
blood pressure measurement. A lack of resting blood pres-
sure can have various causes, such as physical or mental
strain or distraction, speaking or experiencing cardiac
arrhythmias during the blood pressure measurement. In
an overwhelming number of cases, the HSD diagnosis will
give a very good guide as to whether the circulatory system
is rested when taking the measurement. Certain patients
suffering from cardiac arrhythmia or chronic mental condi-
tions can remain haemodynamically unstable in the long
term, something which persists even after repeated periods
1
of rest. The accuracy of the blood pressure at rest results
2
is reduced in these users. Like any medical measurement
method, the precision of the HSD diagnosis is limited and
can lead to incorrect results in some cases. The blood pres-
sure measurements taken when the circulatory system was
at rest represent particularly reliable results.
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