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The Dexcom G5® Mobile Continuous Glucose Monitoring (CGM) System is the only device that lets you treat without pricking your finger.*


* CGM-based treatment requires fingersticks for calibration; may result in hypoglycemia if calibration not performed or symptoms/expectations do not match CGM readings.


You can use your Dexcom G5 Mobile to make treatment decisions. But how do you know you’re ready? Start by discussing Treatment Decisions: The Basics with your healthcare professional (HCP). Get your questions answered. Together, decide when you’re ready.


Whether you’re new to Dexcom G5 Mobile or experienced, you should keep using your meter to make treatment decisions until you know how Dexcom G5 Mobile works for you. Don’t rush! It may take days, weeks or months for you to gain confidence in using your Dexcom G5 Mobile to make treatment decisions. Confirm your glucose readings using your meter so you understand that:


  • the accuracy you experience with each newly inserted sensor may vary
  • a sensor might work differently in different situations (meals, exercise, first day of use, etc.)


Treatment Decisions: The Basics


Always use your meter if symptoms don’t match readings. You know your body, listen to it.


Taken acetaminophen? Always use your meter. Medications containing acetaminophen (e.g. Tylenol®) can give you a false high reading.


Always use your meter to calibrate at sensor start and every 12 hours. Calibrating less often may cause inaccurate readings.

Insulin Stacking

Don’t take insulin doses too close together, or “stack” insulin. You don’t want to go low; wait at least 2 hours. Sometimes it’s best to watch and wait.

When in Doubt

In some situations you may feel less confident in your readings (e.g. first day of your sensor or when your glucose is rapidly changing). When in doubt get your meter out.

Number and Arrow

Always use your meter if you don’t have a number and arrow. Then when you’re ready, you can start to make small treatment adjustments based on arrows.

Treatment Decisions: Beyond the Basics

Wear it. Look at it. Respond to it

The more you use your Dexcom G5 the better your results. Wear it. Look at it. Respond to it. Alarm and alerts keep you posted – leave them on.

What works best for you

Work with your HCP to figure out what works best for you. Know your target glucose. Map a plan for lows. Decide on dosing and timing. Adjust using results of past decisions.

Talk through the below scenarios with your HCP to figure out what works best for you.

What do the arrows mean

ONLY the Dexcom G5 has been approved by the FDA to be used for treatment decisions.

WARNING: Review all indications, contraindications, warnings, precautions and detailed procedures in your user’s guide or patient instructions before using your Dexcom G5 Mobile/G4 PLATINUM Sensor. 

BRIEF SAFETY STATEMENT The Dexcom G5 Mobile Continuous Glucose Monitoring (CGM) System ("G5") is a glucose monitoring system indicated for detecting trends and tracking patterns in persons (age 2 years and older) with diabetes. CONTRAINDICATIONS Do not rely on the G5 CGM data if you have recently taken acetaminophen. Remove the G5 (sensor, transmitter, and receiver) before Magnetic Resonance Imaging (MRI), Computed Tomography (CT) scan, or high-frequency electrical heat (diathermy) treatment. The G5 is MR Unsafe. Do not bring any portion of the G5 into the MRI environment. WARNING CGM-based diabetes treatment decisions are only approved with the G5, not previous generations of Dexcom CGM systems. Calibrate at least once every 12 hours using a fingerstick. If your G5 does not display a sensor glucose reading and an arrow, or if you are getting inaccurate or inconsistent readings, take a fingerstick. If your glucose readings and alerts do not match your symptoms or expectations, take a fingerstick to confirm. Failure to do so may lead to hyperglycemia or hypoglycemia. The G5 is not approved for use in pregnant women, persons on dialysis or critically ill persons. If a sensor breaks and no portion of it is visible above the skin, do not attempt to remove it. Seek professional medical help if you have infection or inflammation on or near the sensor insertion point. Report broken sensors to Dexcom Technical Support. Sensor placement is not approved for sites other than under the skin of the belly (ages 2 years and older) or upper buttocks (ages 2-17 years). To “share” data, you need an internet connection and a separate compatible smart device running the Dexcom Follow App. Contact Dexcom Toll Free at 877-339-2664 or for detailed indications for use and safety information.