Instruction manual

7
4.3. Tube connection
Insert the cuff tube into the opening provided on the left side of the instrument, as shown in the
diagram.
5. Carrying out a measurement
5. Carrying out a measurement
5.1. 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
quiet atmosphere for about ten minutes before the measurement.
Remove any garment that fits closely to your upper arm.
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.
5.2. 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.
If the arm artery lies considerably lower (higher) than the heart, an erroneously higher (lower)
blood-pressure will be measured! (Each 15 cm difference in height results in a measurement error
of 10 mmHg!)
Cuffs that are too narrow or too short result in false measurement values. Selecting the correct
cuff is of extraordinary importance. The cuff size is dependent upon the circumference of the arm
(measured in the centre). The permissible range is printed on the cuff. If this is not suitable for
your use, please contact your dealer. Note: only use clinically approved Original-Cuffs!
A loose cuff or a sideways protruding air-pocket 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 1 minute pause.
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