ABOUT BLOOD PRESSURE
What is Blood Pressure?
Blood pressure is the pressure exerted on the artery walls while
blood flows through the arteries. The pressure measured when the
heart contracts and sends blood out of the heart is systolic (highest)
blood pressure. The pressure measured when the heart dilates with
blood flowing back into the heart is called diastolic (lowest) blood
pressure.
Why Measure Your Blood Pressure?
Among today's various health problems, those associated with high
blood pressure are very common. High blood pressure dangerously
correlates with cardiovascular diseases. Therefore, blood pressure
monitoring is important for identifying those at risk.
Why Are My Readings Different?
Blood pressure is a body parameter that is subject to normal
variations throughout the day. A single reading that is different from
yours or your doctor's readings is not necessarily inaccurate. The
average of several readings, taken under similar conditions, using
the same arm is preferred for accurate blood pressure readings.
BLOOD PRESSURE STANDARD
The table on page 7 contains defined levels for hypertension that
are publicly available from the National Heart Lung and Blood
Institute at the U.S. National Institutes of Health (NIH)
(http://www.nhlbi.nih.gov/health/dci/Diseases/Hbp/HBP_WhatIs.
html). Users can compare their own blood pressure readings against
these defined levels to determine if they may be potentially at
increased risk.
This table is applicable to most adults aged 18 and older.
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Category
Systolic (mmHg)
Normal
Less than 120
Prehypertension
120-139
High Blood Pressure
Stage 1
140-159
Stage 2
160 or higher
Blood pressure tends to go up and down, even in people who
normally don't have high readings. If your numbers stay above the
"normal" range most of the time, you may be at increased risk and
should consult your physician.
Although one can easily find where their own blood pressure
readings fall on this table, this monitor comes equipped with a Risk
Category Index that automatically compares each reading to the
defined levels and provides a helpful cue if your reading falls into
one of the stages that could potentially indicate increased risk. See
page 28 for more information on this feature.
Please note that cues provided by this monitor are only intended to
assist you in using this table. The table and cues are only provided
for convenience to help you understand your non-invasive blood
pressure reading as it relates to the NIH information. They are
not a substitute for a medical examination by your physician. It is
important for you to consult with your physician regularly. Your
physician will tell you your normal blood pressure range as well as
the point at which you may actually be considered to be at risk.
Diastolic
(mmHg)
and
Less than 80
or
80-89
or
90-99
or
100 or higher
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