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Wrist Blood Pressure Monitor
Blood pressure is usually measured at
brachial artery. As the wrist arterial vessel
is connected to the brachial vessel, wrist
blood pressure values are close to brachial
ones and reflect the change of brachial
blood pressures. However in case there is
a circulatory disorder such as arterial
infarction, fairly large difference is observed
between the brachial and the wrist blood
pressure values. After consulting with your
doctor, use the wrist blood pressure
together with the brachial pressure for your
health management.
For healthy people, the difference between
the blood pressure values measured at
wrist and those at upper arm at rest is
usually ±10 mmHg for both the systolic and
the diastolic blood pressures.
However after exercise or a bath, blood
circulation changes greatly and the blood
pressure values at wrist and upper arm
may differ greatly.
Diabetes, hyperlipemia, or hypertension
accelerates arterial sclerosis, which causes
dangerous disease such as cerebral
apoplexy or myocardial infarction or
induces arterial sterosis or peripheral
circulatory disorder.
In these cases, the wrist and brachial blood
pressure values may differ greatly. (Even in
healthy people, a difference of 20 mmHg
may occur if the measuring conditions are
not proper. Therefore do not try to diagnose
the measurement values by yourself, but
be sure to follow the instructions of your
doctor.) In addition, difference of wrist and
brachial blood pressure values may
somewhat get affected by the physiological
conditions at the time of measurement.
However, the blood pressure values
measured at wrist and upper arm usually
fluctuate in the same manner.
Therefore, you can check the fluctuation
tendency of blood pressure by measuring
the wrist blood pressure.
Wrist blood pressure and
brachial blood pressure
Brachial
actery
Wrist artery
(Radial artery)
(Ulnar artery)
Difference in blood
pressure measured at
between wrist and brachial
Wrist and brachial blood
pressure values of those
suffering from disease
Heart
Summary of Contents for R8IT
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