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BOOSTER SHOTS: Oddities, musings and news from the
health world

Pointers for measuring your blood pressure at home

February 07, 2011|By Amina Khan, Los Angeles Times
(Ted S. Warren / Associated…)

Just as American Heart Month begins, a reader sent in a question on checking blood pressure at home -- which, as it turns out, is more nuanced than it looks. So what's the proper way to go about it?

There are a couple of concerns when using a home monitoring device to measure blood pressure: which arm to use, and how long to wait before testing. Luckily, the Mayo Clinic and the American Heart Assn. have some guidance on the subject.

There's usually a slightly measurable difference in blood pressure between your arms, according to the heart association. Your dominant arm will probably be higher. If you're left-handed, pressure may be higher in the left arm, and vice versa.

It shouldn't make a huge difference, but, the association adds: "If one arm has higher blood pressure than the other, that arm should be used to determine if you have hypertension."

Note: If the difference in readings between your left and right arms tops more than 10 mm Hg (millimeters of mercury), there could be other underlying problems that should be checked out with your doctor.

As for how long to rest before taking your blood pressure, the Mayo Clinic suggests three to five minutes; the Cleveland Clinic suggests five to 10. Essentially, all you need is enough time to sit quietly and relax.

Finally, here's a handy video from the Mayo Clinic on how to measure your blood pressure using an automatic monitor.

Follow me on Twitter @LAT_aminakhan.

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