What Is Considered High Blood Pressure (Hypertension)?

September 2017

Hypertension is defined as a chronically increased blood pressure.

The majority of people with hypertension, the most common cardiovascular disease, do not know that they are afflicted with this condition, because hypertension evolves insidiously over the years.



Function of Blood Pressure

Blood pressure is the pressure exerted by the blood pumped by the heart against the walls of arteries.

Blood pressure is the force that helps blood to circulate throughout the body's organs. In cases of hypertension — when one's blood pressure is abnormally high — the heart has to work harder than normal.

Blood pressure is divided into two values: systolic blood pressure, which concerns the maximum value, and diastolic blood pressure, which concerns the minimum value. An individual's blood pressure is thus expressed using two values, usually calculated in inches in mercury (Hg).

What Does Systolic Blood Pressure Mean?

Systolic blood pressure is the uppermost value in blood pressure during the cardiac systole occurring during ventricular contraction. That is, it is the pressure at the time of heart contraction. For example, in the case of a blood pressure of 13/8, it is the number 13.

What Does Systolic Blood Pressure Mean?

Diastolic blood pressure is the lowermost value of blood pressure during cardiac diastole occurring during ventricular relaxation. This pressure occurs in the arteries between two heart contractions during said phase of relaxation, otherwise known as the moment when the heart fills. For example, in the case of a blood pressure of 13/8, it is the number 8.

What Is a Normal Blood Pressure?

Blood pressure is consider to be normal when it is less than 14/9, or 140/90 mmHg.

What Is a Low Blood Pressure?

Blood pressure is considered to be abnormally low when one's pressure decreases below 90 mm Hg, otherwise known as hypotension.

What Is a High Blood Pressure?

Blood pressure is considered to be abnormally high when systolic blood pressure is greater than 15 and diastolic blood pressure is greater than 9; hypertension is thus defined as a value greater than 14/9.

Image: © Milosh Kojadinovich - Shutterstock.com

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Published by Crashounette. Latest update on September 7, 2017 at 11:21 AM by owilson.
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