5
GB
people do not realize they are at risk until their health is
seriously threatened.
What is the standard blood pressure classification?
The following chart (Figure 3) was taken from the World Health
Organization (WHO), and describes the various classifications.
Please 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. Consult your
physician to obtain these values. 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.
Figure 4 below illustrates the variations over a single day with
measurement taken every five minutes. The thick line
represents sleep time. The rises in blood pressure at 4 PM (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).
HOW DOES THE BLOOD PRESSURE
MONITOR WORK?
This product uses the Oscillometric Measuring method to detect
your blood pressure. Before every measurement, the main unit
establishes a “zero pressure” equivalent to the air pressure.
Then it starts inflating the wrist cuff to 180mmHg or higher until
it senses that it has blocked your blood in the artery. After that,
the deflation process starts, during which time the main unit
160
A B
Time
PM
BLOOD PRESSURE
(mmHg)
AM
Sleep
140
120
100
80
60
40
20
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
10
11
Figure 4
Hypertension
systolic over 160
(high pressure)
diastolic over 95
Hypertonia
systolic 140-159
(Border value)
diastolic 90-94
Hypotension
Normal
(low pressure)
range
systolic under 90 systolic
under
139
diastolic
under
89
95
90
90 140 160
Systolic (mmHg)
diastolic (mmHg)
Figure 3
