2 • Safety Information | Dexcom G7 User Guide 15
Using your Dexcom G7 CGM System in these situations could result in errors in
diabetes management. Go to the Treatment Decisions chapter to find out more.
Some users found accuracy between different sensors varied. When you insert each
sensor, check if symptoms match your readings and pay attention to its accuracy
before deciding to use it for treatment decisions.
For more information on how to make treatment decisions using your Dexcom G7
CGM System, go to the Safety Information, Treatment Decisions, and Alerts chapters.
Acetaminophen interfering substance risks
With the Dexcom G7 CGM System you can take a standard or maximum
acetaminophen dose of 1 gram (1,000mg) every 6hours and still use the sensor
readings to make treatment decisions. Taking higher than the maximum dose of
acetaminophen (e.g. > 1 gram every 6hours in adults) may affect the sensor readings
and make them look higher than they really are.
Hydroxyurea interfering substance risks
Hydroxyurea makes your sensor readings look higher than they really are. How much
higher depends on the amount of hydroxyurea in your body. If you’re taking
hydroxyurea, use your BG meter for treatment decisions.
Sensor insertion risks
In rare cases, inserting the sensor can cause infection, bleeding, or pain, and wearing
the adhesive patch can irritate your skin. In most patients, the adhesive reactions are
mild and resolve within a week. Only a few patients in the Dexcom G7 CGM System
clinical studies got slight redness and swelling. Although uncommon, some people get
a significant reaction from the sensor adhesive that may take weeks to resolve.
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