Microlife BP A90 Manual page 5

Selecting the correct cuff
Microlife offers different cuff sizes. Select the cuff size to match the
circumference of your upper arms (measured by close fitting in the
centre of the upper arm).
Cuff size for circumference of upper arm
S 17 - 22 cm (6.75 - 8.75 inches)
M 22 - 32 cm (8.75 - 12.5 inches)
L 32 - 42 cm (12.5 - 16.5 inches)
M - L 22 - 42 cm (8.75 - 16.5 inches)

Pre-shaped cuffs are optionally available.

Only use Microlife cuffs.
Contact your local Microlife Service if the enclosed cuff 5 does

not fit.
Connect the cuff to the device by inserting the cuff connector 6

into the cuff socket 3 as far as it will go.
3. Taking a Blood Pressure Measurement
Checklist for taking a reliable measurement
1. Avoid activity, eating or smoking immediately before the
measurement.
2. Sit down on a back-supported chair and relax for 5 minutes.
Keep the feet flat on the floor and do not cross your legs.
3. Always measure on the same arm (normally left).
4. Remove close-fitting garments from the upper arm. To avoid
constriction, shirt sleeves should not be rolled up - they do not
interfere with the cuff if they are laid flat.
5. Always ensure that the correct cuff size is used (marking on the
cuff).
 Fit the cuff closely, but not too tight.
 Make sure that the cuff is positioned 2 cm above the elbow.
 The artery mark on the cuff (ca. 3 cm long bar) must lie over
the artery which runs down the inner side of the arm.
 Support your arm so it is relaxed.
 Ensure that the cuff is at the same height as your heart.
6. Press the ON/OFF button 1 to start the measurement.
7. The cuff will now pump up automatically. Relax, do not move
and do not tense your arm muscles until the measurement
result is displayed. Breathe normally and do not talk.
8. When the correct pressure is reached, the pumping stops and the
pressure falls gradually. If the required pressure was not reached,
the device will automatically pump some more air into the cuff.
9. During the measurement, the heart symbol AT flashes in the
display and a beep sounds every time a heartbeat is detected.
BP A90
10.The result, comprising the systolic 7 and the diastolic 8 blood
pressure and the pulse rate 9 is displayed and a long beep is
heard. Note also the explanations on further display symbols in
this booklet.
11.When the device has finished measuring, remove the cuff.
12.Switch off the device. (The monitor does switch off automati-
cally after approx. 1 min.).

You can stop the measurement at any time by pressing the
ON/OFF button (e.g. if you feel uneasy or an unpleasant
pressure sensation).
4. Appearance of the Heart Arrhythmia Indicator for
early Detection
This symbol AN indicates that certain pulse irregularities were
detected during the measurement. In this case, the result may
deviate from your normal blood pressure – repeat the measure-
ment. In most cases, this is no cause for concern. However, if the
symbol appears on a regular basis (e.g. several times a week with
measurements taken daily) we advise you to tell your doctor.
Please show your doctor the following explanation:
Information for the doctor on frequent appearance of the
Arrhythmia indicator
This device is an oscillometric blood pressure monitor that also
analyses pulse frequency during measurement. The device is
clinically tested.
The arrhythmia symbol is displayed after the measurement, if
pulse irregularities occur during measurement. If the symbol
appears more frequently (e.g. several times per week on
measurements performed daily) we recommend the patient to
seek medical advice.
This device does not replace a cardiac examination, but serves
to detect pulse irregularities at an early stage.
5. Data Memory
At the end of each measurement, this device automatically stores
the result.
Viewing the stored values
Press the M-button AO briefly, when the device is switched off. The
display first shows the last stored result.
Pressing the M-button again displays the previous value. Pressing
the M-button repeatedly enables you to move from one stored
value to another.
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