BP3GK1-4B
13
IB BP3GK1-4B EN
EN
5. How do I take a measurement?
Please note: You should always be seated before and during the measurement.
5.1. Preparing to take a measurement
• Avoid eating, talking and smoking as well as all forms of exertion directly before your
measurement. These factors influence the measurement result. Relax by sitting in an
armchair in a quiet atmosphere for about 5 minutes before your measurement.
• Always measure on the same wrist (normally left).
• Compare readings at the same time of day, since your blood pressure changes during the
course of the day.
5.2. Common errors
Note:
Comparable blood pressure measurements always require the same conditions. These are
normally always quiet conditions.
• All efforts 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 wrist artery lies considerably lower (higher) than the heart, an erroneously higher
(lower) blood pressure will be measured. (Each 15 cm/6" difference in height results in a
measurement error of 10 mmHg.)
• A loose cuff causes false measurement values.
• With repeated measurements, blood can accumulate in the respective arm, which can lead
to false results. Correctly executed blood pressure measurements should therefore first be
repeated after a 1 minute pause or after the arm has been held up in order to allow the
accumulated blood to flow away.
5.3. Using the cuff
a) Remove all objects and jewelry (e.g., wristwatch) from the wrist in use. This is normally
the left wrist. Put the cuff over the wrist with the monitor face on the inside of the wrist.
b) The distance between the cuff and the hand should be approx. 10 mm (1/2").
c) Secure the cuff with the hook and loop fastener so that it lies comfortably and not too
tight. No space should remain between the cuff and the wrist.
