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What does HI/LO mean when it appears after I scan the FreeStyle Libre 14 day reader over the sensor?

If LO appears on the FreeStyle Libre 14 day reader when you scan the reader over the sensor it means the reading is lower than 40mg/dL. If HI appears on the reader when you scan over the sensor it means the reading is higher than 500 mg/dL1.

1 FreeStyle Libre 14 day User’s Manual


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ADC-2661293 v5.0 06/26