About Blood Pressure
What are systolic pressure and diastolic pressure?
When ventricles contract and pump blood out
of the heart, the blood pressure reaches its
maximum value in the cycle, which is called
systolic pressure. When the ventricles relax,
the blood pressure reaches its minimum
value in the cycle, which is called diastolic
pressure.
What is the standard blood pressure classification?
The blood pressure classification published by
World Health Organization (WHO) and
International Society of Hypertension (ISH) in
1999 is as follows:
CAUTION:
Only a physician can tell your normal BP range. Please contact a physician if your measuring result
falls out of the range. Please note that only a physician can tell whether your blood pressure value
has reached a dangerous point.
