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ENGLISH | 33
ABOUT BLOOD PRESSURE
What is the standard blood pressure
classification?
The blood pressure classification published
by World Health Organization (WHO) and
International Society of Hypertension (ISH)
in 1999 is as follows.
Caution:
Only a physician can tell your
normal BP range. Please contact a physician
if your measuring result falls out of the range.
Kindly note that only a physician could tell
whether your blood pressure value has reached
a dangerous point.
Optimal
Normal
Hypertension
G1
G2
G3
SYS
<120
121-130
131-140
141-160
161-180
≥180
DIA
<80
81-85
86-90
91-100
101-110
≥110
Level
Blood
Pressure
(mmHg)
DislDiastolic blood pressure (
mmHg
)
Systolic blood pressure (mmHg)
Optimal
Blood
Pressure
Normal
High normal
Subgroup to mild hypertension
Grade 1: Hypertension (mild)
Grade 2: Hypertension (moderate)
Grade 3: Hypertension (severe)