displayed and then the time. The input is now confirmed and the clock begins to run.
Further Information
With each press of the button (TIME, MEMORY) one input is made (e.g. switching over from hours to
minutes mode, or altering the value by +1). However, if you keep the respective button depressed,
you can switch more quickly to find the desired value respectively.
6.
Carrying out a measurement
6.1
Before the measurement
Avoid eating, smoking as well as all forms of exertion directly before the measurement. All these
factors influence the measurement result. Try and find time to relax by sitting in an armchair in a
quite atmosphere for about ten minutes before the measurement.
Measure always on the same arm (normally left).
Attempt to carry out the measurements regularly at the same time of day, since the
blood-pressure changes during the course of the day.
6.2
Common sources of error
Note: Comparable blood-pressure measurements always require the same conditions! These are
normally always quiet conditions.
All efforts by the patient to support the arm can increase the blood-pressure. Make sure you are
in a comfortable, relaxed position and do not activate any of the muscles in the measurement
arm during the measurement. Use a cushion for support if necessary.
The performance of the automated sphygmomanometer can be affected by extremes of
temperature, humidity and altitude.
Avoid compression or restriction of the connection tubing.
A loose cuff causes false measurement values.
With repeated measurements, blood accumulates in the respective arm, which can lead to false
results. Correctly executed blood-pressure measurements should therefore first be repeated
after a 5 minute pause or after the arm has been held up in order to allow the accumulated
blood to flow away (after at least 3 minutes).
