Introduction
Blood pressure measurements determined with Z-40 are equivalent to those obtained by a
trained observer using cuff/stethoscope auscultation method, within the limits prescribed by the
American National Standard, Electronic or Automated Sphygmomanometers. This product is to
be used by adults only for personal use.
Attention: Please read this manual carefully before using it. For specific information on
your own blood pressure, contact your physician. Please be sure to keep this manual.
How Z-40 works
Z-40 uses oscillometric method to detect your blood pressure. Before the cuff starts inflating, the
device will establish a baseline cuff pressure, which is equivalent to the air pressure. The
measurement of our blood pressure is based on this baseline pressure. After the cuff inflates to
block your blood in the artery, the deflation process starts. During the deflation of the wrist cuff,
the monitor is detecting the pressure oscillations generated by the beat-to-beat pulse. Any muscle
movement during this period of time will cause measurement error. After detecting the amplitude
and the slope of the pressure oscillations during the deflation process, your Z-40 will determine
the systolic and diastolic pressures for you, and your pulse rate is detected at the same time.
Stage 2 Hypertension
Stage 1 Hypertension
Prehypertension
Normal
Systolic < 120
Diastolic < 80
Systolic 120 ~ 139
Diastolic 80 ~ 89
Systolic140 ~ 159
Diastolic 90 ~ 99
Systolic ≥ 160
Diastolic ≥ 100
Systolic (mmHg) →
Diastolic (mmHg) →
About Blood Pressure
What is Blood Pressure?
Blood pressure is the pressure exerted on the artery tube 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 the various health problems afflicting modern people, problems associated with high
blood pressure are by far the most common. High blood pressure is dangerously correlated with
cardiovascular diseases and high morbidity. Therefore blood pressure monitoring is a necessity
to identify these risks.
Blood Pressure Standard
The National High Blood Pressure Education Program Coordinating Committee has
developed a blood pressure standard, according to which areas of low-and high-risk blood
pressure are identified. This standard, however, is a general guideline as individual’s blood
pressure varies among different people and different age group, etc.
It is important that you consult your physician regularly. Your physician will tell you your normal
blood pressure range as well as the point at which you will be considered at risk. For reliable
monitoring and reference of blood pressure, keeping long-term records is recommended.
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