Do not ignore symptoms that may be due to low or high blood glucose. If you have symptoms that do not match the Sensor glucose reading or suspect that your reading may be inaccurate, check the reading by conducting a finger stick test using a blood glucose meter. If you are experiencing symptoms that are not consistent with your glucose readings, consult your health care professional.

What will happen if users do not scan the reader over the Sensor in an 8-hour period?

Users will start losing the oldest glucose readings if the reader is not scanned at least once during an 8-hour period. For example, users scan the reader over the Sensor at 13:00 and scans again at 22:00 then users will lose glucose data from 13:00-14:00. The reader will indicate this missing data on reports.  There will be a gap on the Daily Trace that impacts the statistics on Sensor usage however it will not be indicated in other reports.1

Reference

1. FreeStyle Libre flash glucose monitoring system User's Manual.