Blood Pressure Monitor Hem 780

[mage source="flickr"]Blood Pressure Monitor Hem 780[/mage]
Should I trust my Home blood pressure monitor or the store monitor?

Each time I go to the store , It gives me high readings. Like today:
148/98 then later 145/92 then 139/90 that was my last reading at the store. However when I get home I use my BP monitor called Omron HEM-780 supposely very accurate and my readings are around 125/85.
A lot of people are telling me that the store monitors are not as accurate and the noice & everything makes people more nervous therefore give higher readings. What should I trust?

Home BP monitors like the Omron are usually fairly accurate. When you take your pressure a the store, do you allow at least a few minutes to relax? If not, your pressure may be a little higher in the store. As it could be if you are nervous or stressed if there are people around and you're feeling self consciousness.
The best way to check the accuracy of your home machine is to take it to your next appointment w/ your health care provider and have it checked with your machine AFTER the nurse/doctor checks your pressure manually