Microlife BP AG1-40 Instruction Manual download pdf (Page 9)

4. Carrying out a measurement

4.1. Before the measurement

• Avoideating,smokingaswellasallformsofexertiondirectlybeforethemeasurement.All

these factors influence the measurement result. Try and find time to relax by sitting in an

armchair in a quite atmosphere for about ten minutes before the measurement.

• Removeanygarmentthatfitscloselytoyourupperarm.

• Measurealwaysonthesamewrist(normallyleft).

• Attempttocarryoutthemeasurementsregularlyatthesametimeofday,sincetheblood

pressure changes during the course of the day.

4.2. Common sources of error

Note: Comparable blood pressure measurements always require the same conditions! These are

normally always quiet conditions.

• Alleffortsbythepatienttosupportthearmcanincreasethebloodpressure.Makesure

you are in a comfortable, relaxed position and do not activate 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(higher)thantheheart,anerroneouslyhigher(lower)

blood pressure will be measured! (Each 15 cm difference in height 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 of extraordinary importance. The cuff size is dependent upon the circumference of the

arm (measured in the centre). The permissible range is printed on the cuff. If this is not suitable

for your use, please contact your dealer. Note: Only use clinically approved Original-Cuffs!

• Aloosecufforasidewaysprotrudingairpocketcausesfalsemeasurementvalues.

4.3. Fitting the cuff

a) Push the cuff over the left upper arm so that the tube

points in the direction of the lower arm.

b) Lay the cuff on the arm as illustrated. Make certain that

the lower edge of the cuff lies approximately

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Microlife BP AG1-40 Instruction Manual Page 9