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ABOUT BLOOD PRESSURE
ABOUT BLOOD PRESSURE
What are systolic pressure and diastolic pressure?
What is the standard blood pressure classification?
press
artery
vein
blood discharging
Systolic
relax
blood entering
Diastolic
SYS
DIA
<
120
<
80
120~129
80~84
130~139
85~89
140~159
90~99
160~179
100~109
>
180
>
110
Level
Blood
Pressure
(mmHg)
The blood pressure classification
published by World Health Organization
(WHO) and International Society of
Hypertension (ISH) in 1999 is as follows:
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.
Optimal
Normal
High-normal
Mild
Moderate
Severe
CAUTION
When ventricles contract and pump blood
out of the heart, blood pressure reaches its
maximum value, the highest pressure in the
cycle is known as systolic pressure. When
the heart relaxes between heartbeats, the
lowest blood pressure is diastolic pressure.
Irregular Heartbeat Detector
CAUTION
The appearance of the IHB icon indicates that a pulse irregularity consistent with an
irregular heart-beat was detected during measurement. Usually this is NOT a cause for
concern. However, if the symbol appears often, we recommend you seek medical advice.
Please note that the device does not replace a cardiac examination, but serves to detect
pulse irregularities at an early stage.
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.
