ABOUT “BLOOD PRESSURE”

English

 

What is blood pressure?

 

The heart is a pump that circulates blood throughout your body. Blood is pumped

 

 

 

 

from the heart at a constant pressure into arteries. This pressure is called the

 

 

arterial blood pressure and represents, in general terms, your blood pressure. Blood

 

 

pressure is indicated by several kinds of pressures, including the systolic pressure

 

 

that occurs when the heart pumps blood, and the diastolic pressure that occurs

 

 

 

 

when blood returns to the heart.

BLOOD PRESSURE Q&A

Q Why is the blood pressure measured at home different from that measured by the

physician or at a hospital?

English

A Your blood pressure may vary due to exercise, the ambient temperature or your

mental state. When you have a physician or nurse measure your blood pressure, the

 

pressure value is likely to be 10 to 20 mmHg higher than usual due to anxiety and/

 

or stress. Knowing what affects your blood pressure helps you to better monitor your

 

Español Português

(Systolic)

Artery

Left atrium

Left

ventricle The artery wall expands.

Contraction

(Diastolic)

 

Artery

Left atrium

 

Left

Normal state is restored

ventricle

to the artery wall.

 

Dilation

health.

Español

Q Why does the blood pressure obtained vary with measurement?

A Our blood pressure is adjusted by automatic nerve function. Blood pressure differs

with every heart beat. We are likely to think that our blood pressure is constant, but

 

it varies if you take measurements in repetition. Blood pressure is susceptible to the

Português

time of day, such as morning and afternoon, season and atmospheric temperature.

In addition, blood pressure is easily affected by mental stress or emotional ups and

downs. It tends to increase when you feel tension or decrease when you are relaxed.

Q What is the benefit of measuring my blood pressure at home?

A Blood pressure measurements taken at home give reliable data as they can be

 

taken when you are in a stable and relaxed condition. Physicians place considerable

 

importance on blood pressure measurements taken at home. You should measure

 

Your blood pressure changes all the time.

Your blood pressure differs according to your age, gender and a range of other factors. It is likely to be affected by your biorhythm during the day and by your posture, physical activities, mental activities, level of stress and even by the air temperature. The blood pressure of a healthy person generally varies within a day.

Italiano

[Example of blood pressure variations within a day]

 

(mmHg)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Systolic blood

160

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pressure

140

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Français

pressure value

120

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Diastolic blood

 

Blood

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sleeping

 

pressure

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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中文

 

 

 

 

 

 

 

 

 

 

 

 

Time of day

 

 

 

 

 

 

 

 

 

 

(Blood pressure values measured at five-minute intervals through the day)

 

 

 

 

 

 

 

 

 

● Bevan AT, Honour AJ, Stott FH. Clin Sci 1969;36:329–44.

your blood pressure at the same time each day and record the variations in your blood

Deutsch

pressure.

 

 

Italiano

 

Français

Always consult your physician for an interpretation of your blood pressure

中文

readings and to determine the proper treatment.

 

- Eng 24 -

- Eng 25 -

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Citizen Systems CH-456 instruction manual About Blood Pressure, Blood Pressure Q&A, Español Português