Simply put, "HI" means your blood glucose is higher than the top number that your meter is able to display. It could be one point higher, hundreds of points higher, or anything in between. What to do when you get a "HI" reading. Double-check. First, you want to make sure the reading is accurate. Thoroughly wash and dry your hands. Then.. Important Safety Information. FreeStyle Libre 14 day, FreeStyle Libre 2 and FreeStyle Libre 3 systems: Failure to use FreeStyle Libre systems as instructed in labeling may result in missing a severe low or high glucose event and/or making a treatment decision, resulting in injury. If glucose reading and alarms (if enabled) do not match symptoms or expectations, use a fingerstick value from a.
If HI appears on the Reader when users scan over the Sensor it means the reading is higher than 500 mg/dL. Users can touch the message button for more information. Users should check their blood glucose on their fingertip with a test strip. If users get a second HI they should contact their healthcare professional immediately.1 Reference 1. FreeStyle Libre flash glucose monitoring system.. If HI appears on the reader when users scan over the Sensor it means the reading is higher than 500 mg/dL (27.8 mmol/L). Users can touch the message button for more information. Users should check their blood glucose on their fingertip with a test strip. If users get a second HI they should contact their healthcare professional immediately.