HEM-7080IT-E.book 48 ページ 2011年11月14日 月曜日 午後1時53分
9. Some Useful Information about Blood Pressure
200
150
100
50
6
Example: fluctuation within a day (male, 35 years old)
Classification of Blood Pressure by the World Health
Organization
The World Health Organization (WHO) and the International Society of
Hypertension (ISH) developed the Blood Pressure Classification
shown in this figure.
This classification is based on the blood pressure values measured on
people in a sitting position in outpatient departments of hospitals.
Note: There is no universally accepted definition of hypotension.
However, those having the systolic pressure below 100 mmHg
are assumed as hypotensive.
48
Upper curve: systolic blood pressure
Lower curve: diastolic blood pressure
12
18
Time of day
Systolic blood pressure
(mmHg)
Severe hypertension
180
Moderate hypertension
160
Mild hypertension
140
Normal systolic value
130
Normal blood
pressure
120
Optimal blood
pressure
(target value)
80
85
90
24
Diastolic
blood
pressure
100 110
(mmHg)