Dexcom g4 User Manual page 8

WARNINGS
• Do not use the Dexcom G4 CGM System until after you have been trained or
viewed the training materials included with your CGM system.
• The blood glucose value from your blood glucose meter should be used for
treatment decisions, such as how much insulin you should take. The Dexcom
G4 System does not replace a blood glucose meter. Blood glucose values may
differ from sensor glucose readings. The direction, rate of glucose change, and
trend graph on your Dexcom G4 System provide additional information to help
with your diabetes management decisions.
• Symptoms of high and low glucose should not be ignored. If your sensor
glucose readings do not fit with your symptoms, you should measure your
blood glucose with a blood glucose meter.
• Your sensor glucose readings may be inaccurate if you calibrate less than
every 12 hours.
• Sensors may fracture on rare occasions. If a sensor breaks and no portion of it
is visible above the skin, do not attempt to remove it. Seek professional medical
help if you have symptoms of infection or inflammation—redness, swelling or
pain—at the insertion site. If you experience a broken sensor, please report this
to your local distributor.
• The Dexcom G4 System is not approved for use in children or adolescents,
pregnant women or persons on dialysis.
• Sensor placement is not approved for sites other than under the skin of the
belly (abdomen).
• If your transmitter or receiver case is damaged/cracked, do not use them, as
this could create an electrical safety hazard or malfunction.
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.
8 | Dexcom G4 Continuous Glucose Monitoring System