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WHAT IS SYSTOLIC PRESSURE AND DIASTOLIC
PRESSURE?
WHAT IS THE STANDARD BLOOD PRESSURE
CLASSIFICATION?
The blood pressure classification published by World Health Organizatiom (WHO) and
International Society of Hypertension (ISH) is as follows:
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.
vein
relax
blood entering
Diastolic
press
artery
blood discharging
Systolic
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.
CAUTION
LEVEL /
BLOOD PRESSURE
(mmHg)
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
Grade 3 hypertension (severe)
Grade 1 hypertension (mild)
Grade 2 hypertension (moderate)
An irregular heartbeat is detected when a heartbeat rhythm varies while the unit is measuring the
systolic and diastolic blood pressure. During each measurement, the monitor records all of the
pulse intervals and calculates the average; 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 if there are
four or more pulse intervals, the difference between each interval and the average is more than
the average value of ±15%, the irregular heartbeat symbol appears on the display when the
measurement results are displayed.
IRREGULAR HEARTBEAT INDICATOR
The appearance of the IHB icon indicates that a pulse irregularity consistent with an
irregular heartbeat was detected during measurement. Usually this is NOT a cause for
concern. However, if the symbol appears often, it is recommended to seek medical advice.
Please note that this device does not replace a cardiac examination, but serves to detect
pulse irregularities at an early stage.
CAUTION
