GB
34
Information You Should Know Before
Operating the Unit
What is blood pressure?
A force is created by the heart as the ventricle forcibly
ejects blood into the blood vessels and through the
vascular system. Another force is created by the arter-
ies as they resist the blood
fl
ow. Blood pressure is the
result of these two forces.
Comparison to WHO recommendations
See the following blood pressure classi
fi
cation chart
released by the WHO (World Health Organization) for
evaluation of your blood pressure level.
Severe hypertension (Grade 3)
Moderate Hypertension (Grade 2)
Mild Hypertension (Grade 1)
Optimal
Normal
Boarderline
Blood
pressure
classi
fi
ca-
tion
Systolic BP
mmHG
Diastolic BP
mmHg
Color
indicator
Optimal
< 120
< 80
6x Green
Normal
120 – 129
80 – 84
3x Green
High –
Normal
130 – 139
85 – 89
6x Yellow
Stage 1
Hyperten-
sion
140 – 159
90 – 99
2x Red
Stage 2
Hyperten-
sion
160 – 179
100 – 109
4x Red
Stage 3
Hyperten-
sion
>= 180
>= 110
6x Red
