English 20
WHO Blood Pressure Classification
Standards to assess high blood pressure, without regard to age,
have been established by the World Health Organization
(WHO), as shown in the chart at the right.
Blood Pressure Variations
An individual’s blood pressure varies greatly on a daily and seasonal
basis. It may vary by 30 to 50 mmHg due to various conditions
during the day. In hypertensive individuals variations are even more
pronounced. Normally, the blood pressure rises while at work or play
and falls to its lowest levels during sleep. So, do not be overly
concerned by the results of one measurement.
Take measurements at the same time every day using the
procedure described in this manual to get to know your normal blood
pressure. Regular readings give a more comprehensive blood
pressure history. Be sure to note the date and time when recording
your blood pressure. Consult your doctor to interpret your blood
pressure data.
Maintenance
Do not open the device. It uses delicate electrical components and an intricate air unit that could be damaged. If you
cannot fix the problem using the troubleshooting instructions, contact the authorized dealer in your area or our
customer service department. The A&D customer service will provide technical information, spare parts and units to
authorized dealers.
The device was designed and manufactured for a long service life. However it is generally recommended to have
the device inspected every 2 years, to ensure proper functioning and accuracy. Please contact the authorized
dealer in your area or A&D for maintenance.
