About Blood Pressure
Answers to Why Your Readings Are Different Between
Home and at the Doctor's Office
Why are my readings different between home and at a doctor's
office?
Your blood pressure readings taken in a doctor's office or hospital
setting may be elevated as a result of apprehension and anxiety. This
response is known as white coat hypertension.
When I bring my monitor to a doctor's office, why do I get a
different measurement from my monitor to that taken by a doctor
or nurse?
The healthcare professional may be using a different sized cuff. The
size of the bladder inside the cuff is critical for the accuracy of the
measurement. This may give you a different reading. A cuff too large
will produce a reading that is lower than the correct blood pressure;
a cuff that is too small will produce a reading that is higher than the
correct blood pressure. There may also be other factors that can cause
the difference in measurements.
Keys to Successful Monitoring:
Blood pressure fluctuates throughout the day. We recommend that you
are consistent in your daily measurement routine:
q Measure at the same time every day.
q Sit in the same chair/position.
q Do not cross legs and keep your feet flat on the floor.
q Relax for 5 minutes before measurement.
q Use the correct cuff size to get an accurate reading.
q Sit still during measurement – no talking, eating or sudden
movements.
q Record your measurement in a logbook.
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