Prolife PA2 BT, Instruction Manual, Page: 14 / 76

14
en
IMPORTANT INFORMATION ON THE SUBJECT
OF BLOOD PRESSURE AND ITS MEASUREMENT
Causes affecting the blood pressure level
The blood pressure level is regulated by a specific region of the brain – vaso-
motor center. The blood pressure change is subject to the heart force and rate
as well as the tone and lumen of blood vessels. Relaxation of the unstriated
muscles of the blood vessel walls results in pressure reduction due to the
expansion of the lumen of blood vessels.
The blood pressure level changes periodically during cardiac activity: the maxi-
mum value (systolic blood pressure value) is observed in the period of blood
ejection out of the heart ventricles (systole), the minimum value (diastolic
blood pressure value) is observed at the end of the relaxation period (diastole).
The blood pressure values must lie within normal ranges to prevent critical
condition of health.
Which values are normal?
The blood pressure is considered to be elevated, if at rest the diastolic pres-
sure level is 90 mmHg or above and / or the systolic pressure level is above
140 mmHg. In this case, please consult your doctor. Maintenance of such
pressure levels for a long period of time pose risk to health.
Should the systolic blood pressure values lie between 140 mmHg and
160 mmHg and / or the diastolic blood pressure values lie between 90 mmHg
and 100 mmHg, please consult your doctor immediately. Furthermore, regu -
lar self–checks will be necessary.
With blood pressure values that are too low, i.e. systolic values under
100 mmHg and / or diastolic values under 60 mmHg, likewise, please consult
your doctor.
Even with normal blood pressure values, a regular self–check with your blood
pressure monitor is recommended. In this way you can timely detect devia-
tions from permissible values and take the necessary measures to prevent
hypertension and the development of complications. If for medical reasons
you have to control your blood pressure, measure it regularly at the same
time of the day and keep a self–monitoring diary so that the doctor could
evaluate changes in values.