B.Well WA-55, Инструкция по эксплуатации

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Instructions manual
WA-55
5
En
stances should you alter the dosages of any drugs prescribed by your doctor.
• The pulse display is not suitable for checking the frequency of heart pacemakers!
• In cases of cardiac irregularity (Arrhythmia), measurements made with this instrument should only be evaluated after consultation with the doctor.
Electromagnetic interference:
The device contains sensitive electronic components (Microcomputer). Therefore, avoid strong electrical or electromagnetic fields in the direct vicinity of the
device (e.g. mobile telephones, microwave cookers). These can lead to temporary impairment of the measuring accuracy.
2. Important information on the subject of blood-pressure and its measurement
2.1. How does high blood-pressure arise?
The level of blood-pressure is determined in a part of the brain, the so-called circulatory centre, and adapted to the respective situation by way of feedback
via the nervous system.
To adjust the blood-pressure, the strength and frequency of the heart (Pulse), as well as the width of circulatory blood vessels is altered. The latter is effected
by way of fine muscles in the blood vessel walls.
The level of arterial blood-pressure changes periodically during the heart activity: During the «blood ejection» (Systole) the value is maximal (systolic blood-
pressure value), at the end of the heart’s «rest period» (Diastole) minimal (diastolic blood-pressure value).
The blood-pressure values must lie within certain normal ranges in order to prevent particular diseases.