What is blood pressure? Why is this measured as low and high BP? in 5points
Answers
90 over 60 (90/60) or less: You may have low blood pressure. More on low blood pressure.
More than 90 over 60 (90/60) and less than 120 over 80 (120/80): Your blood pressure reading is ideal and healthy. Follow a healthy lifestyle to keep it at this level.
More than 120 over 80 and less than 140 over 90 (120/80-140/90): You have a normal blood pressure reading but it is a little higher than it should be, and you should try to lower it. Make healthy changes to your lifestyle.
140 over 90 (140/90) or higher (over a number of weeks): You may have high blood pressure (hypertension). Change your lifestyle - see your doctor or nurse and take any medicines they may give you. More on high blood pressure
So:
if your top number is 140 or more - then you may have high blood pressure, regardless of your bottom number.
if your bottom number is 90 or more - then you may have high blood pressure, regardless your top number.
if your top number is 90 or less - then you may have low blood pressure, regardless of your bottom number.
if your bottom number is 60 or less - then you may have low blood pressure, regardless of your top number.