Sensor Shut-Off Troubleshooting - Dexcom g4 User Manual

• You should always use the same meter you routinely use to measure your
blood glucose to calibrate. Do not switch your meter in the middle of a sensor
session. Blood glucose meter and strip accuracy may vary between blood
glucose meter brands.
• Prior to obtaining a blood glucose value to be used for calibration, wash your
hands, make sure your glucose test strips are not expired and have been
stored properly and that your meter is properly coded (if required). Carefully
apply the blood sample to the test strip following the instructions provided with
your meter or test strips.
• Make sure you are using your blood glucose meter per manufacturing
instructions to ensure you are getting accurate blood glucose values for
calibration.
• Make sure you have not taken any medications containing acetaminophen
(paracetamol) (such as Tylenol) ingredients to ensure you are getting accurate
blood glucose values for calibration.
• Clean the bottom of the transmitter with a wrung-out, slightly water-dampened
cloth or isopropyl alcohol wipe. Place the transmitter on a clean, dry cloth and
air dry for 2-3 minutes.
9.6

SENSOR SHUT-OFF TROUBLESHOOTING

In some cases your sensor session may stop or need to be stopped before the
end of a full 7-day period. Once the sensor session is stopped you will need to
remove your sensor.
To help improve future sensor performance:
• Make sure your sensor is not expired.
• Make sure your transmitter is fully snapped in.
• Make sure your sensor pod is not dislodged or peeling up.
• Make sure nothing is rubbing the sensor pod (i.e. clothing, seat belts, etc.).
• Make sure you have selected a good insertion site (see Chapter 3, Section 3.3,
Choosing an Insertion Site).
• Make sure your insertion site is clean and dry prior to sensor insertion.
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