A member asked:

What is the normal variability for a blood glucose meter?

3 doctors weighed in across 2 answers

5%: The blood glucose meters should be accurate to withinh 5%. This means that a blood sugar of 100 could be reported by the meter as anywhere from 95 to 105. For the daily use this is quite accurate.

Answered 1/28/2012

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+/- 15%: Unfortunately, most meters are only able to tell you a value within about 15% of the "real" value.

Answered 9/28/2016

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