User`s guide

172 | Dexcom G4 PLATINUM Professional Continuous Glucose Monitoring System
13
 •Makesurethesensorisnotexpired.
 •Makesureyoudonotcalibratewhenthe or are shown.
 •Donotusealternativebloodglucosesitetesting(bloodfromthe
palm or forearm, etc.) for calibration as alternative site readings may
be different than those from a blood glucose value. Use a blood
glucosevalueonlyfromthengersforcalibration.
 •Useonlybloodglucosevaluesbetween40-400mg/dLfor
calibration. If one or more of the values is outside of this range, the
receiver will not calibrate.
 •Usethesamemeteryouroutinelyusetomeasurethebloodglucose
to calibrate. Do not switch the meter in the middle of a sensor
session. Blood glucose meter and strip accuracy vary between
blood glucose meter brands.
 •Beforetakingabloodglucosemeasurementforcalibration,wash
hands, make sure the glucose test strips have been stored properly
and are not expired and make sure that the meter is properly coded
(if required). Carefully apply the blood sample to the test strip
following the instructions provided with the meter or test strips.
 •Makesureyouareusingthebloodglucosemeterfollowingthe
manufacturer’s instructions to get accurate blood glucose values for
calibration.
 •Makesureyouhavenottakenanymedicationscontaining
acetaminophen (such as Tylenol) to ensure you are getting accurate
blood glucose values for calibration.
13.6 SENSOR SHUT-OFF TROUBLESHOOTING
In some cases the sensor session may stop or need to be stopped
before the end of a full 7-day period. You must remove the sensor and
contact your healthcare professional.