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  • With Mayo Clinic diabetes educators

    Nancy Klobassa, R.N., and Peggy Moreland, R.N.

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  • June 16, 2009

    Blog: Blood glucose meters, how high can they go?

    By Nancy Klobassa, R.N., and Peggy Moreland, R.N.

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Let's talk about altitude, and whether it affects your blood glucose meter results.

Having grown up in the Midwest, I generally don't give much thought to it. About the closest thing to mountains here in southeast Minnesota are the cliffs along the Mississippi River, which are beautiful, especially in the fall when the foliage has an array of colors.

When I worked as a diabetes educator in the Phoenix area, patients asked whether altitude affects blood glucose meter results. There are several mountain ranges in Arizona, so I decided to do a little investigating and discovered elevation, along with humidity and temperature, can affect blood glucose meter results.

An increasing number of you participate in activities such as camping, hiking, backpacking, and rock climbing in extreme environmental conditions. You need to be able to depend on an accurate meter in order keep your blood glucoses stable during these events. In general, it seems if you are at or closer to sea level and then travel to the mountains, you may find that your blood sugar level will read lower, although even this isn't always consistent.

Some meter product inserts say they can be used up to 10,000 feet of elevation, others don't address it. When traveling in high altitudes it would be a good idea to keep the meter next to your body because it may prevent problems associated with meter and battery malfunction at low temperatures.

Your thoughts or experiences?

Have a good week.

- Nancy

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