User's Manual

EN
5
What are systolic pressure and diastolic pressure?
When ventricles contract and pump blood out of the heart,
blood pressure reaches its maximum value. This highest
pressure in the cycle is known as systolic pressure. When
the heart relaxes between heartbeats, the lowest blood
pressure is diastolic pressure.
What is mean arterial pressure (MAP)?
The mean arterial pressure (MAP) is the average pressure
that forces blood through the arteries. It is not the average
of the systolic and diastolic blood pressure; rather, MAP
corresponds to a state of balance between the compressive
and expansive forces acting on the arterial wall when there
is no distension outward or inward. MAP is an excellent
way to evaluate the stress on the walls of your blood
vessels, and can be used to evaluate excessive load on
the cardiovascular system. Show your MAP history to your
doctor to provide additional information that may help him or
her understand your situation.
Why measure your blood pressure?
Blood pressure measurement can highly reect 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 classication?
The gure illustrates the blood pressure classication made
by World Health Organization (WHO)
and International
Society of Hypertension (ISH) in 1999.
110
100
95
90
85
80
)
g
H
m
m
(
e
rus
ser
p
d
oolb
ci
l
o
ts
a
i
D
12 0 13 0 1 40 15 0 16 0 1 80
Systolic blood pressure (mmHg)
Grade 3 hypertension (severe)
Grade 2 hypertension (moderate)
Grade 1 hypertension (mild)
Subgroup: borderline
High-normal Blood Pressure
Normal Blood Pressure
Optimal Blood
Pressure
Reference material: 1999 World Health Organization-
International Society of Hypertension Guidelines for the
management of hypertension, Journal of Hypertension,
1999, 17(2): 151-183.
NOTE
• Blood pressure is considered high when either the diastolic
or systolic blood pressure value exceeds the normal range.
When a patient’s systolic and diastolic blood pressures fall
into different categories, the higher category should apply.
• Only a physician can tell you your normal blood pressure
range and the point at which you are at risk. Consult your
physician to obtain these values. If the measurements
taken with these products fall outside the range, consult
your physician.
BPW800_EN_R8.indd 5 2011/6/8 7:07:01 PM