What Is High Blood Pressure?

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Define Systolic & Diastolic Blood Pressure....5

High blood pressure, or hypertension, is caused by tension within the blood vessels. A blood pressure reading more than 140 over 90 is generally considered to be high. Learn what the top and bottom numbers on a blood pressure reading mean with information from a nurse in this free video on blood pressure.

Part of the Video Series: Blood Pressure Facts
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Video Transcript

I'm going to speak with you briefly about what is high blood pressure. First of all, let me give you some numbers on an adult reading; it's usually considered anything over or at 140/90 since normal is 120/80 for an adult. High blood pressure is hypertension. Hypertension means that it's increased and there's tension within those blood vessels; usually because the blood vessels have narrowed down. It could be an obstruction in there, it could be some other cause that the physician would have to assess you with it regarding tests and so forth. Now when the pressure increases in the artery and the heart contracts, that is the top number, the systolic and when the relaxation phase of the heart occurs and the arteries are relaxing, that is going to be the dystolic. So the systolic is on the top, dystolic is the bottom numbers. And anything over 140/90 is considered to be a hypertensive blood pressure. So you need to consult your physician if you're getting readings like that. This concludes of what is high blood pressure.

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