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Issue
Skin irritation around sensor site.
Solution
Some people are sensitive to the sensor adhesive. Extra care can help. Follow
insertion instructions carefully. In addition to the site preparation tips above, consider
these:
Site preparation
New site: Don't use the same sensor site twice in a row.
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Healthy skin: Consider moisturizing skin between sensor sessions to avoid dry
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skin. Don't use moisturizer on the sensor site the day you insert the sensor.
If you have significant skin irritation (itching, burning and/or rashes at the site of the
adhesive patch), contact your healthcare provider. Go to
tips.
Issue
Applicator won't detach after inserting sensor.
Solution
1. Gently peel off adhesive patch with applicator attached.
2. Check insertion site to make sure the sensor isn't left in the skin.
3. Don't reuse applicator.
4. Contact technical support (in the phone app, go to Profile > Contact) or contact
your local Dexcom distributor.
Issue
Removing sensor.
Solution
Go to the
Next Sensor Session
110
chapter or
dexcom.com/faqs
dexcom.com/faqs
for tips.
for more
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Table of Contents
Need help?
Do you have a question about the G7 and is the answer not in the manual?
Questions and answers
changed sensor, it paired but get a message sensor failed start new sensor
The Dexcom G7 sensor may show a failure message after pairing due to issues such as using an outdated sensor version that is not compatible with certain devices, signal loss, or sensor adhesion problems. If pairing with a Tandem hybrid closed-loop system, an older Dexcom T7 version may cause an error message like "sensor not started 43t." Checking the sensor's LBL number and ensuring compatibility can help resolve the issue. If the problem persists, contacting Dexcom for a replacement may be necessary.
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How long after eating does readings reach the sensor?
The Dexcom G7 sensor measures glucose in interstitial fluid, not blood, and glucose levels in interstitial fluid can lag behind blood glucose levels, especially when glucose is changing rapidly. This means that after eating, the sensor reading may take some time to reflect actual blood glucose changes. The exact time can vary, but differences are more noticeable when glucose levels are rising or falling quickly.
This answer is automatically generated
Wait time between showing & inserting new G7 sensor
The Dexcom G7 sensor has a 12-hour grace period at the end of its session, allowing time to replace the sensor. After inserting a new sensor, there is a sensor warm-up period before readings and alerts begin.
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Power off is where
The power off button on the Dexcom G7 receiver is the right button with a circle on it, also known as the Select button.
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How to change zone settings in G7 on Android phone app?