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5.2.Common errors:
Note: Comparable blood pressure measurements always require
the same conditions! These are normally quiet conditions.
• All efforts by the user to support the arm can increase blood pres-
sure. Make sure you are in a comfortable, relaxed position and do not
flex any of the muscles in the measurement arm during the measure-
ment. 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 15 cm
(6") difference in height between your heart and the cuff results in a
measurement error of 10 mmHg.
• Cuffs that are too small result in false measurement values.
Selecting the correct cuff is extremely important. Cuff size is depen-
dent 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 1-800-568-4147.
• A loose cuff or a sideways protruding air pocket causes false mea-
surement 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 in order to allow the
accumulated blood to flow away.
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