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.

Can the FreeStyle Libre system be used while in flight, despite the 10,000 feet (3,048 meters) maximum operating altitude range?

Commercial aircrafts are generally pressurized to an equivalent altitude of 8,000 feet (2,438 meters) and therefore within the operating range of the FreeStyle Libre Reader.1

Reference

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