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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?
The following chart was taken from the World Health
Organization (WHO), and describes the various
classifications.
NOTE
• Hypotension value is for reference only.
• Blood pressure is considered high when either the
diastolic or systolic blood pressure value exceeds
the normal range.
• Only a physician can tell you your normal blood
pressure range and the point at which you are at
risk. If the measurements taken with this product
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.
The graph below illustrates the variations over a
single day with measurement taken every 5 minutes.
The thick line represents sleep time. The rises in
blood pressure at 4PM (A in the graph) and 12AM (B
in the graph) correspond to an attack of pain and
sexual intercourse (Beven, Honour & Stott, Clin. Sci.
36:329, 1969).
%3:B(1B5D 10/20/04, 5:13 PM7