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General information about blood pressure
Blood circulation
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.
Classification of blood pressure
The World Health Organisation (WHO) and the International Society of Hypertension (ISH) developed the blood pressure classification. This classification is based on the blood pressure values measured while sitting on a chair in the outpatient department of a hospital.
Systolic blood pressure (mmHg)
180 |
|
| Severe hypertension |
|
| Moderate hypertension |
| ||
160 |
|
| ||
| Mild hypertension |
| ||
140 |
|
| ||
Normal systolic value |
| |||
130 |
| |||
Normal blood |
| |||
120 | pressure |
| ||
Optimal blood |
|
| Diastolic | |
|
| |||
| pressure |
|
| |
| (target value) |
|
| blood |
|
|
|
| pressure |
| 80 | 85 90 100 110 | ||
| (mmHg) | |||
According to the blood pressure classification by the WHO/ISH.
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