8
• Use only clinically approved original cu.
• If you want to follow the results of your blood pressure meas-
urements, always perform measurements at the same time of
day, since blood pressure changes during the course of day.
• Measurements should be done after a 5 minute rest to ensure
accuracy.
3.1. Fitting the cu
1. Pass the end of the cu through the at
metal ring so that a loop is formed, and the
velcro faces outwards.
2. Place the cu over the left upper arm
so that tube is closer to your lower arm.
3. Lay the cu on the arm so that the low-
er edge of the cu lies approximately 2 to 3
cm above the elbow.
4. Tighten the cu by pulling the end and
close the cu by axing the velcro. There
should be little free space between the arm
and the cu. Cu that does not t properly
results in false measurement values. Cloth-
ing must not restrict the arm. Any piece of
clothing which does must be removed.
5. Lay your arm on a table so the cu is at
the same height as your heart. If the upper
arm artery lies considerably lower or higher
than the heart, a false higher or lower blood
pressure will be measured! A variation of 15
cm between cu and heart level can result in
a reading error of + or - 10mm Hg.
Make sure the tube is not kinked.
2-3cm
