About Blood Pressure
What is Blood Pressure?
Blood pressure is the force exerted by blood against the walls of the arteries. Systolic pressure occurs when the heart contracts. Diastolic pressure occurs when the heart expands. Blood pressure is measured in millimeters of mercury (mmHg). One's natural blood pressure is represented by the fundamental pressure, which is measured first thing in the morning while one is still at rest and before eating.
What is Hypertension and How is it Controlled?
Hypertension, an abnormally high arterial blood pressure, if left unattended, can cause many health problems including stroke and heart attack. Hypertension can be controlled by altering lifestyle, avoiding stress, and with medication under a doctor’s supervision.
To prevent hypertension or keep it under control:
Do not smoke |
| Exercise regularly |
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Reduce salt and fat intake |
| Have regular physical checkups |
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Maintain proper weight |
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Why Measure Blood Pressure at Home?
Blood pressure measured at a clinic or doctor's office may cause apprehension and can produce an elevated reading, 25 to 30 mmHg higher than that measured at home. Home measurement reduces the effects of outside influences on blood pressure readings, supplements the doctor's readings and provides a more accurate, complete blood pressure history.
WHO Blood Pressure Classification
Standards | to | assess | high | Reference Material: Journal of Hypertension 1999, Vol 17 No.2 | ||||||||
blood | pressure, without | mmHg |
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| Grade 3 hypertension (severe) | ||||||
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regard | to | age, have | been | pressure | 110 |
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| Grade 2 hypertension (moderate) | |||||||||||
established | by | the | World | 105 |
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Health Organization (WHO), | 100 | Grade 1 hypertension (mild) | ||||||||||
95 | ||||||||||||
as shown in the chart. |
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| 90 |
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Blood Pressure Variations | Diastolic | 85 |
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Normal |
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80 |
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An individual’s blood pressure |
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Optimal |
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varies greatly on a daily and |
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| 120 130 140 150 160 170 180 | |||||||||
seasonal basis. It may vary by |
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| Systolic blood pressure mmHg | |||||||
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30 to 50 mmHg due to various conditions during the day. In hypertensive | ||||||||||||
individuals’ variations are even more pronounced. Normally, the blood pressure rises while at work or play and falls to its lowest levels during sleep. So, do not be overly concerned by the results of one measurement.
Take measurements at the same time every day using the procedure
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