: haemodynamic stability
Measurement of the systolic and diastolic pressure is in-
creased when the circulatory system is sufficiently at rest
and is a very reliable indicator of resting blood pressure.
However, if the circulatory system is not sufficiently at rest
(haemodynamic instability), the symbol
In this case, the measurement 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 it will be the basis for a diagnosis
and regulation of the patient's medical treatment.
: lack of haemodynamic stability
It is very probable that the measurement of systolic and di-
astolic blood pressure has not been carried out at rest and
has therefore distorted the measurement.
Repeat the measurement after a rest and relaxation period
of at least 5 minutes. Go to a sufficiently calm and comfort-
able spot and remain there calmly; close your eyes, breathe
deeply and evenly and try to relax.
If the following measurement shows a lack of stability again,
repeat the measurement after another period of rest. In case
of further unstable measurements, identify these measure-
ments as they were taken when the circulatory system had
not be sufficiently rested.
In this case, inner unrest of the nervous system could be the
cause, which cannot be cured by brief periods of rest. Devel-
oping cardiac arrhythmia can also prevent stable blood pres-
sure measurements.
A lack of resting blood pressure can have various causes,
such as physical or mental strain or distraction and speak-
ing or experiencing heart rhythmic disturbance during the
is displayed.
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
conditions can remain haemodynamically unstable in the
long-term, something which persists even after repeated
periods of rest. The precision of the results of the resting
blood pressure 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 pressure measurements taken when the circulatory
system was at rest represent particularly reliable results.
6. Calling up stored values
You can call up values from the 2 user memories and dis-
play the averages.
• Press the M1 or M2 memory buttons. Firstly, the average
of all values stored in this user memory will be displayed.
This is denoted by the letter "A" in the display.
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