Dexcom G4 Platinum User Manual page 9

PRECAUTIONS
• Before opening the sensor package, wash your hands with soap and water and
dry them to avoid contamination.
• Before inserting the sensor, always clean the skin at the sensor insertion
location with a topical antimicrobial solution, such as isopropyl alcohol. This
may help prevent infection. Do not apply the sensor until the cleaned area is
dry so that it will stick better.
• Change the site where you place your sensor with each insertion to allow your
skin to heal.
• Avoid 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.
• Avoid injecting insulin or placing an insulin pump infusion set within 7.62 cm of
the sensor in case the insulin affects the sensor glucose readings.
• The sensor is sterile in its unopened, undamaged package. Do not use any
sensor if its sterile package has been previously damaged or opened.
• To calibrate the system, you must enter the exact blood glucose value that
your blood glucose meter displays within 5 minutes of a carefully performed
blood glucose measurement. Entering incorrect blood glucose values or blood
glucose values from more than 5 minutes ago could result in inaccurate sensor
glucose readings.
• The transmission range from the transmitter to the receiver is up to 6 meters
without obstruction. Wireless communication does not work well through water
so the range is much less if you are in a pool, bathtub, water bed, etc.
• Sensors should be stored at temperatures between 2° C - 25° C for the length
of the shelf life. You may store your sensors in the refrigerator if it is within this
temperature range. Sensors should not be stored in a freezer.
• Keep the USB port cover on the receiver closed whenever the USB cable is not
attached. The receiver may malfunction if water gets into the USB port.
Dexcom G4 PLATINUM User's Guide | 9