eta Compact 2297 90000, Инструкция по эксплуатации

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II. GENERAL INFORMATION
Measurement Principle
This product uses the Oscillometric Measuring method to detect blood pressure. Before
every measurement, the unit establishes a “zero pressure” equivalent to the atmospheric
pressure. Then it starts inflating the arm cuff, meanwhile, the unit detects pressure
oscillations generated by beat-to-beat pulsatile, which is used to determine theb systolic
and diastolic pressure, and also pulse rate.
What are systolic pressure and diastolic pressure?
Systolic
blood discharging
artery
press
relax
Diastolic
blood entering
vein
When ventricles contract and pump blood out of the heart,
the blood pressure reaches its maximum value in the cycle,
which is called systolic pressure. When the ventricles relax,
the blood pressure reaches its minimum value in the cycle,
which is called diastolic pressure.
What is the standard blood pressure classification?
Grade 3 hypertension (severe)
Grade 2 hypertension (moderate)
Grade 1 hypertension (mild)
Subgroup: borderline
High-normal Pressure
Normal Pressure
Optimal
Pressure
Systolic blood pressure (mmHg)
Diastolic blood pressure (mmHg)
The blood pressure classification published by World
Health Organization (WHO) and International Society of
Hypertension (ISH) in 1999 is as follows:
Blood Presure
(mm Hg)
Optimal Normal High-normal Mild Moderate Severe
SYS <120 120-129 130-139 140-159 160-179 ≥180
DIA <80 80-84 85-89 90-99 100-109 ≥110
CAUTION
Only a physician can tell your normal BP range. Please contact a physician if your
measuring result falls out of the range. Please note that only a physician can tell whether
your blood pressure value has reached a dangerous point.
Irregular Heartbeat Detector
An irregular heartbeat is detected when a heartbeat rhythm varies while the device is
measuring systolic pressure and diastolic pressure. During each measurement, blood
pressure monitor will keep a record of all the pulse intervals and calculate the average
value of them. If there are two or more pulse intervals, the difference between each interval
and the average is more than the average value of ±25%, or there are four or more pulse
intervals, the difference between each interval and the average is more than the average
value of ±15%, then the irregular heartbeat symbol will appear on the display with the
measurement result.
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