How do I use Dexcom CGM to make treatment decisions?
With Dexcom CGM, you can make treatment decisions without using your blood glucose (BG) meter.
However, you should keep using your meter to make treatment decisions until you know how Dexcom CGM works for you. Do not rush! It may take days, weeks, or months for you to gain confidence in using your CGM to make treatment decisions.
Work with your healthcare professional to review what works best for you when making treatment decisions.
When to use Dexcom CGM
Use your Dexcom CGM for treatment decisions when you see both a number and trend arrow on your home screen.
Use your Dexcom CGM for treatment decisions when you see both a number and trend arrow on your home screen.
When to use your meter
- No number or no arrow: Use your meter for treatment decisions when you are missing a number or trend arrow.
- Your Dexcom CGM readings don’t match your symptoms: You don’t feel right, but your Dexcom CGM says you’re in target. Use your meter.
When to watch and wait
Don’t take insulin doses too close together. That is called “insulin stacking.” If in doubt, consult your healthcare professional on correct insulin dosage.
Don’t take insulin doses too close together. That is called “insulin stacking.” If in doubt, consult your healthcare professional on correct insulin dosage.
MAT‑11165
This device is a registered medical device under Act 737. MDA Registration No.: GC4609424-190288. Advertisement Approval MDAMD 080/2026