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on the arterial wall when there is no distension outward
or inward. MAP is an excellent way to evaluate the
stress on the walls of your blood vessels, and can be
used to evaluate excessive load on the cardiovascular
system. Show your MAP history to your doctor to
provide additional information that may help him or her
understand your situation.
Why measure your blood pressure?
Blood pressure measurement can highly reflect one’s
health condition. High blood pressure is potentially linked
to serious illnesses such as stroke, heart disease and
kidney failure.
Since there is no symptom most of the time, many
hypertensive people do not realize they are at risk until
their health is seriously threatened.
What is the standard blood pressure classification?
Figure 3 illustrates the blood pressure classifications
by World Health Organization (WHO) and International
Society of Hypertension (ISH) in 1999.
Reference material: 1999 World Health Organization
International Society of Hypertension Guidelines for the
management of hypertension, Journal of Hypertension,
1999, 17(2): 151-183.
NOTE:
• Blood pressure is considered high when either the
diastolic or systolic blood pressure value exceeds the
normal range. When a patient’s systolic and diastolic
blood pressures fall into different categories, the
higher category should apply.
• Only a physician can tell you your normal blood
pressure range and the point at which you are at risk.
Consult your physician to obtain these values. If the
measurements taken with these products fall outside
the range, consult your physician.
Why does my blood pressure fluctuate
throughout the day?
Individual blood pressure varies greatly both on a daily
and a seasonal or temperature basis. These variations
may be more pronounced in hypertensive patients.
Normally the blood pressure rises while at work and is at
its lowest during sleep.
120 130 140 150 160 170 180
110
100
95
90
85
80
Grade 3 hypertension (severe)
Grade 2 hypertension (moderate)
Grade 1 hypertension (mild)
Subgroup borderline
High-normal Blood Pressure
Normal Blood Pressure
Optimal Blood
Pressure
Diastolic blood pressure (mmHg)
Systolic blood pressure (mmHg)