According to the blood pressure classification by the WHO/ISH.
SYS lower than 100mmHg is considered as hypotension.
Blood pressure type
About blood pressure
16/25
Diastolic blood
pressure
mmHg
(
)
110
100
90
85
80
120 130 140 160 180
Systolic
bl od pressure
mmHg
(
)
o
Optimal
blood pressure
target value
(
)
Normal blood pressure
Mild hypertension
Moderate hypertension
Severe hypertension
High normal value
High normal value
Optimal blood pressure
Normal blood pressure
Mild hypertension
Moderate hypertension
Severe hypertension
R
O
Y
G
R
O
Y
G
R
O
Y
G
R
O
Y
G
R
O
Y
G
R
O
Y
G