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Common sources of error:
Note:
Comparable blood pressure measurements always require the
same conditions!
• 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
25-30cm 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.
Cuff works Under the pressure range 0-299MMHG
The wide range rigid cuff is : 8.7” – 15.7” (22 - 40cm)
Note:
Only use approved cuffs!
• A loose cuff or a sideways protruding air pocket causes false me-
asurement values.
• With repeated measurements, blood accumulates in the arm,
which can lead to false results. Consecutive blood pressure me-
asurements should be repeated after a 1 minute pause or after
your arm has been held up in order to allow the accumulated blo-
od to flow away. If you decide to take your Averaging Mode me-
asurement again, be sure to wait at least one minute beforehand.
Fitting the Cuff
a) The cuff is pre-formed for easier use. Remove tight or bulky
clothing from your upper arm.
b) Wrap the cuff around your upper left arm. The rubber tube sho-
uld be on the inside of your arm extending downward to your
hand. Make certain the cuff lies approximately 1/2” to 3/4” (1 to
2 cm) above the elbow. Important! The on the edge of the cuff
(Artery Mark) must lie over the artery which runs down the inner
side of the arm.
Summary of Contents for ORO-N2 BASIC
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