Any adult who is over 20 years of age, and who has a Systolic Blood Pressure of equal or more
than 140 mm of mercury and a diastolic BP of equal or more than 90 mm of mercury on two separate
occasions when recorded in a relaxed sitting position is considered hypertensive.
A Systolic Blood Pressure between 120 to 139 or Diastolic Blood Pressure between 80 to 89 is
considered pre-hypertensive and requires to be monitored for hypertension in the future.
