English 13
To prevent hypertension or keep it under control:
Do not smoke
Exercise regularly
Reduce salt and fat intake
Have regular physical checkups
Maintain proper weight
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 blood pressure, without regard to age,
have been established by the World Health Organization (WHO),
as shown in the chart on the right.
Blood Pressure Variations
An individual’s blood pressure varies greatly on a daily and seasonal basis. It may
vary by 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 described
in this manual to get to know your normal blood pressure. Regular readings give
a more comprehensive blood pressure history. Be sure to note date and time
when recording your blood pressure. Consult your doctor to interpret your blood
pressure data.
Typical fluctuation within a day
(Measured every five minutes)
Systolic
Blood P
ressure
Diastolic
Sleep
Reference Material: Journal of Hypertension 1999, Vol 17 No.2
Systolic blood pressure
Grade 3 hypertension (severe)
Grade 2 hypertension (moderate)
Grade 1 hypertension (mid)
High-normal
Normal
Optimal
Dias
to
lic
b
lo
od
pr
es
su
re
