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20
About Blood Pressure
Lower pressure
Relaxation of the
heart muscle
Pressure decreased
to the blood vessel
Blood return heart
Higher pressure
Contraction of
the heart muscle
Pressure increased
to the blood vessel
Extrude blood
Systolic Blood Pressure Diastolic Blood Pressure
The blood circulation is responsible for supplying the body with oxygen.
Blood pressure is the pressure exerted on the arteries.
The systolic blood pressure value (higher pressure or top value) represents
the blood pressure produced by contraction of the heart muscle.
The diastolic blood pressure value (lower pressure or lower value) represents
the blood pressure produced by relaxation of the heart muscle.
Blood Circulation
21
About Blood Pressure
*Note!
When a person’s systolic and diastolic pressures fall into different categories,
the higher category should apply.
WHO
Red
Yellow
Green
80
85
90
100
110
Diastolic Blood Pressur (mmHg)
120 130 140 160 180 Systolic Blood Pressure (mmHg)
Optimal
blood pressure
(target value)
Normal blood pressure
Normal systolic value
Mild hypertension
Moderate hypertension
Severe hypertension
After each measurement is completed, the LCD display will show your
position automatically on the six segments of the bar indicator which
corresponds to World Health Organization (WHO) Blood Pressure Indicator.
Reference Material: Journal of Hypertension 1999, Vol 17 No.2
Classification of Blood Pressure
Classification of Blood Pressure