5
OVER
5 Insert or Remove Your Sensor
Purpose To insert, remove, or replace a small, thin, plastic sensor under your skin so that your
FreeStyle Navigator system can continuously monitor your glucose level.
Start Do this procedure:
•erst time you use your FreeStyle Navigator system.
•Every5daysaerthat.
•Replaceyoursensor sooner than 5 days when:
– ere is any redness, pain, tenderness, or swelling at the insertion site.
– An error code displays on your receiver indicating a sensor problem.
•When replacing batteries.
Materials Gather these materials before you begin:
•Soap and water.
•Alcoholpreppads.
•AsensordeliveryunitinitsUNOPENED package.
•Yourtransmitter.
•Yourreceiver.
Helpful Information
Important: Keep the following in mind when inserting your sensor.
•Youwillnothavecontinuousmonitoringdatauntilyouhavesuccessfullycompletedtherst
calibration (at least for the rst ten hours aer sensor insertion).
•Youmaynotbeabletocalibratethesystemifyourglucoselevelsarechangingrapidly.Forexample,
during a meal or exercise, your glucose levels may vary rapidly. Try to time your insertion so that
your calibration times do not coincide with your regular meal or exercise activities.
Note: You should keep your sensor inserted for 5 days. See the exceptions listed above under Start.
•esystemwillaskyoutoperform4calibrationsatapproximately-10,12,24and72hoursaer
inserting a new sensor (See Section 7).
•YouMUST change your sensor every 5 days, to reduce the chance of infection. e system
automatically terminates a sensor session aer 5 days. Do NOT leave the sensor inserted for more
than 5 days.
•Takingactionattherstsignofirritationordiscomfortwillkeepsmallissuesfromturninginto
larger or ongoing ones.
•Youmaynotbeabletoperformthecalibrationaeryoueatuntilyourglucoselevelsstabilize.
•SeeAppendixA:SiteMaintenanceforadditionalhelpfulsuggestions.
•Beforeinsertinganewsensormakesurethattherearenolowbatterymessagesdisplayedonthe
receiver. is will help avoid data loss aer the insertion if the batteries are running low.
Interferents: In vitro and in vivo testing suggest that usual pharmacologic levels of ascorbic acid have
no eect on the function of the system but salicylic acid has minimal eect. In vitro testing suggests
that normal physiologic levels of uric acid, lipids, and bilirubin do not aect system function. e
impact of oral hypoglycemic agents and other potential interfering substances has not been studied.

Section 5 35

Insert or Remove Your Sensor