Panasonic EW3152 Operating Instructions Manual page 24

Why are measured blood pressure values different each time I take
a measurement?
@ Blood pressure changes even within a single
day, and it is different depending on the
measurement posture. Because of this,
when taking measurements, be sure to
always take measurements under the same
conditions.
Q For persons taking blood pressure
medication, blood pressure may change
greatly due to the effects of the medication.
© When taking 2 measurements in succession,
be sure to stay quiet for 4 to 5 minutes after
the first measurement before taking the next
measurement.
Q Why are the measured values different for the left and right arm?
It is said that differences in blood pressure
values between the left and right arms may
be around 10mmHg. The blood pressure can
be measured in either the left or right arm,
but all measurements should be taken using
the same arm for comparative consistency.
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