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About Blood Pressure
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
Organization
shown in the chart at 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 individual 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
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.
Reference Material: Journal of Hypertension 1999, Vol 17 No.2
Health
(WHO),
as
the
procedure
ENGLISH 10
Grade 3 hypertension (severe)
Grade 2 hypertension (moderate)
Grade 1 hypertension (mild)
High-normal
Normal
Optimal
Systolic blood pressure
Typical fluctuation within a day
(Measured every five minutes)
mmHg
Systolic
Diastolic
PM
Sleep
AM
Time
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