A&D ESSENTIAL UB-525 Instruction Manual page 18

About Blood Pressure
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.
E-18