3
GB
What are systolic pressure and diastolic
pressure?
When ventricles contract and pump blood out of the heart,
blood pressure reaches its maximum value, the highest
pressure in the cycle is known as systolic pressure. When
the heart relaxes between heartbeats, the lowest blood
pressure is diastolic pressure.
What is the standard blood pressure
classification?
Below illustrates the blood pressure classification mode by
World Health Organization (WHO) and International
Society of Hypertension(Isa) in 1999.
Systolic Diastolic
artery
p
ress
r
elax
v
ein
blood discharging
b
lood entering
CAUTION
Only a physician/GP can tell you your normal blood pressure range and the point at which you are at risk.
Consult your physician to obtain these values. If the measurements taken with this product fall outside the
range, consult your physician/GP.
SYS <120 120~129 130~139 140~159 160~179 >180
DIA <80 80~84 85~89 90~99 100~109 >110
Level
Blood
Pressure
(mmHg)
Optimal
Normal High-normal Mild Moderate Severe
Optimal Norm. Norm. G1 G2 G3
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