Dexcom G5 Getting Started Manual page 11

Be Accurate, Be Quick
To calibrate the system, enter the exact blood glucose value displayed on your
blood glucose meter within five minutes of a carefully performed fingerstick
glucose measurement.
Do not enter the Dexcom G5's sensor glucose readings for calibration.
Entering incorrect blood glucose values, blood glucose values obtained more
than 5 minutes before entry, or sensor glucose readings might affect sensor
performance.
Treatment Decisions
Make diabetes treatment decisions based on the combination of the sensor
glucose reading, trend arrow, and/or actionable alerts generated by the Dexcom
G5.
Expiration Date
Do not use Dexcom G5 Sensors that are beyond their expiration date. Before
inserting a sensor, confirm the expiration date that is listed on the package label
in the following format: YYYY-MM-DD.
Do not use sensors that are beyond their expiration date because the sensor
glucose readings might not be accurate.
Sensor Placement
Avoid using the same spot repeatedly for sensor insertion. Rotate your sensor
placement sites, and do not use the same site for two sensor sessions in a row.
Using the same site might cause scarring or skin irritation.
Avoid inserting the sensor in areas that are likely to be bumped, pushed, or
compressed or areas of skin with scarring, tattoos, or irritation as these are
not ideal sites to measure glucose. Insertion in these areas might affect sensor
accuracy.
Avoid injecting insulin or placing an insulin pump infusion set within three inches
of the sensor. The insulin might affect sensor performance.
Use Correct Transmitter, Receiver, and Sensor
Different generations of Dexcom continuous glucose monitoring system
transmitters and receivers are not interchangeable with each other.
Dexcom G5 Mobile CGM System Getting Started Guide • 9