A&D Blood Pressure Monitor UA-853 - Manual (Page 13)

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Measurement with the desired systolic pressure:
If your systolic pressure is expected to exceed 230 mmHg follow these steps:
1. Place the cuff on the left arm, unless your physician tells you otherwise.
2. Press and hold the START button until a number 30 to 40 mmHg higher
than your expected systolic pressure appears.
3. Release the START button when the desired number is reached. 280
mmHg is the highest pressure level the monitor can reach. Measurement
will then begin. Continue to measure your blood pressure as described on
Page E-8.
TAKING YOUR BLOOD PRESSURE