Microlife BP A150 AFIB Manual page 6

Cuff size for circumference of upper arm
S 17 - 22 cm
M 22 - 32 cm
M - L 22 - 42 cm
L 32 - 42 cm
L - XL 32 - 52 cm

Optional preformed cuffs «Easy» are available.
 Only use Microlife cuffs.
Contact your local Microlife Service if the enclosed cuff 6 does

not fit.
Connect the cuff to the device by inserting the cuff connector 7

into the cuff socket 4 as far as it will go.
Select the measuring mode: standard or AFIB/MAM mode
This device enables you to select either standard (standard single
measurement) or AFIB/MAM mode (automatic triple measure-
ment). To select standard mode, slide the AFIB/MAM switch AT on
the side of the device downwards to position «1» and to select
AFIB/MAM mode, slide this switch upwards to position «3».
AFIB/MAM mode
In AFIB/MAM mode, 3 measurements are automatically taken in
succession and the result is then automatically analysed and
displayed. Because blood pressure constantly fluctuates, a result
determined in this way is more reliable than one produced by a single
measurement. AF detection is only activated in AFIB/MAM mode.
• After pressing the ON/OFF button 1, the MAM-symbol AO
appears in the display.
• The bottom, right hand section of the display shows a 1, 2 or 3 to
indicate which of the 3 measurements is currently being taken.
• There is a break of 15 seconds between the measurements
(15 seconds are adequate according to «Blood Pressure Moni-
toring, 2001, 6:145-147» for oscillometric instruments). A count
down indicates the remaining time.
• The individual results are not displayed. Your blood pressure
will only be displayed after all 3 measurements are taken.
• Do not remove the cuff between measurements.
• If one of the individual measurements was questionable, a
fourth one is automatically taken.
4. Taking a Blood Pressure Measurement using this
Device
Checklist for taking a reliable measurement
1. Avoid activity, eating or smoking immediately before the
measurement.
4
2. Sit down for at least 5 minutes before the measurement and relax.
3. Always measure on the same arm (normally left). It is recom-
mended that doctors perform double arm measurements on a
patients first visit in order to determine which arm to measure in
the future. The arm with the higher blood pressure should be
measured.
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 located 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 pulse indicator AS flashes in the
display.
10.The result, comprising the systolic AL and the diastolic AM
blood pressure and the pulse rate AN is displayed. 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.).
How not to store a reading
As soon as the reading is displayed press and hold the ON/OFF
button 1 until «M» AR is flashing. Confirm to delete the reading by
pressing the M-button 2.
 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).

If the systolic blood pressure is known to be very high,
it can be an advantage to set the pressure individually. Press
the ON/OFF button after the monitor has been pumped up to
a level of approx. 30 mmHg (shown on the display). Keep the
button pressed until the pressure is about 40 mmHg above
the expected systolic value – then release the button.