Kinetik Blood Pressure BPM1KTL - Manual (Page 18)

Additional Information on Blood Pressure
Your heart is just like a pump which works all the time to make the blood flow through all blood vessels.
Blood pressure measures the force on the wall of the blood vessels caused by the pressure of the blood.
The output of blood from the heart when it pushes blood around the body is called systolic blood pressure.
Diastolic blood pressure is the measurement of the blood returning to the heart.
Blood pressure is normally written as, for example:
120 (systolic)
80 (diastolic)
Fluctuation of Blood Pressure
Blood pressure fluctuates constantly during the day. Its value in
the day time is higher than in the evening with the lowest level
being at midnight. The pressure begins to rise again at 03:00am
and reaches its highest level any time during the day – so it is
impossible to get a consistent reading. For this reason, please take
your measurements at the same time of day.
Systolic Diastolic
17