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:
• Measure at the same time every day.
• Sit in the same chair/position.
• Do not cross legs and keep your feet flat on the floor.
• Relax for 5 minutes before measurement.
• Use the correct cuff size to get an accurate reading.
• Sit still during measurement – no talking, eating or sudden
movements.
• Record your measurement in a logbook.
ABOUT BLOOD PRESSURE
E-13