5. Measurement Procedure
Please note: You should always be seated before and during measurement.
5.1. Before measurement:
• Avoid eating and smoking as well as all forms of exertion directly before measurement.
These factors influence the measurement result. Find time to relax by sitting in an armchair
in a quiet atmosphere for about ten minutes before measurement.
• Remove any garment that fits closely to your upper arm.
• Always measure on the same arm (normally left).
• Always compare measurements taken at the same time of day, since blood pressure
changes during the course of the day.
5.2. Common sources of error:
Note: Comparable blood pressure measurements always require the same condi-
tions! Conditions should always be quiet.
• All efforts by the user to support the arm can increase blood pressure. Make sure you are in a
comfortable, relaxed position and do not flex 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 or higher than the heart, an erroneously high or low
blood pressure will be measured! Each 15cm (6 inch) difference in height between your heart
and the cuff 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 extremely important. Cuff size is dependent upon the circumference of the arm (measured
in the center). The permissible range is printed on the cuff. If this is not suitable for your use,
please call 1-866-464-6184.
Note: Only use clinically approved Cuffs!
• A loose cuff or a sideways protruding air pocket causes false measurement values.
• With repeated measurements, blood accumulates in the arm, which can lead to false results.
Consecutive blood pressure measurements should be repeated after a 1 minute pause or after
your arm has been held up in order to allow the accumulated blood to flow away.
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