Coachcare B02T User Manual - Page 7
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5. Measurement Procedure
Note:
You should always be seated and calm 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 taking a 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, as much as 20-40 mmHg.
5.2. 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 0-300MMHG
The wide range rigid cuff is : 8.7" – 15.7" (22 - 40 cm)
Note: Only use 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. If you decide to take your
Averaging Mode measurement again, be sure to wait at least one minute
beforehand.
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5.3. Fitting the Cuff
Please refer to picture-06
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 should be on
the inside of your arm extending downward towards your hand. Make certain
the cuff lies approximately 0.8 to 1.2 in (2.0 to 3.0 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.
c) To secure the cuff, wrap it around your arm and press the hook and loop
closure together.
d) There should be little free space between your arm and the cuff. You
should be able to fit 2 fingers between your arm and the cuff. Cuffs that don't
fit properly result in false measurement values. Measure your arm circumfer-
ence if you are not sure of proper fit.
e) Lay your arm on a table (palm upward) so the cuff is at the same height as
your heart. Make sure the tube is not kinked.
f) Remain seated quietly for at least two minutes before you begin the
measurement.
Picture-06
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