About Blood Pressure - Lookee LK-A2 User Manual

• Those who have a history of heavier arrhythmia, should consult a professional
physician about measured blood pressure value and confirm.
2.3 Electromagnetic Interference
Due to the unit has sensitive electronic components, avoid using it directly in
strong electromagnetic environment (such as:mobile phone, microwave oven etc.),
as it may lead to inaccurate results.

3. About Blood Pressure

3.1 What is Blood Pressure?
Blood pressure (BP) is regulated by brain circulation center.Through the regulation
of nervous system,the body can adapt to or change blood pressure , so that make
different body parts corresponding reflected in different states.Human body
changes the blood vessel diameter and pulse via the changes of smooth muscle
of microvessels, thereby changing blood pressure. When heart contracts to apex ,
blood pressure shows the highest state , called systolic (SYS); when heart relaxes to
nadir , blood pressure shows the lowest state, called diastolic (DIA).
3.2 What is normal blood pressure?
If blood pressure value is too high during rest: diastolic pressure (DIA) exceeds 90
mmHg, and either systolic pressure (SYS) is higher than 140 mmHg. In this case,
please consult your physician immediately. Prolonged hypertension will damage
blood vessels and important organs such as kidneys and even the heart. Consult
your physician if systolic blood pressure (SYS) is between 140mmHg and 160mmHg
and diastolic pressure (DIA) is between 90mmHg and 100mmHg. In addition,
regularly self-measurement is also very necessary. Please consult your physician
when blood pressure value is too low, that is, systolic blood pressure (SYS) is lower
than 100 mmHg, and diastolic blood pressure (DIA) is lower than 60 mmHg.
It is necessary to use this sphygmomanometer for regular blood pressure self-
measurement even though your blood pressure is in the normal scope. Through
this method, you can find changes in blood pressure earlier and take appropriate
measures. If you are in the period of medication to control your blood pressure,
please self-measurement and record your blood pressure every day. And take the
records to your physician. Please do not privately change the prescription and
dosage prescribed by the physician according to your measurement .
The following is a standard taxonomy established by the World Health Organization
(WHO) for blood pressure, showed in the below table: Unit (mmHg)
6