B.Well WA-88, Инструкция по эксплуатации

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9
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 the desired mode,
or find the desired value respectively.
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
quite atmosphere for about ten minutes before the measurement.
• Measure always on the same wrist (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 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 wrist artery lies considerably lower (higher) than the heart, an erroneously higher (lower) If the wrist 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!)
A loose cuff causes false measurement values. A loose cuff causes false measurement values.
With repeated measurements, blood accumulates in the respective arm, which can lead to false
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).
istruction_All.indd 9 13.04.2006 16:06:52