Dexcom G5 MOBILE User Manual page 253

Loved One's Symptoms Don't Match
If you're a caregiver, watch for signs that something is wrong. Your two-year-old may not be
able to tell you what's going on, but chances are their actions will. Look for the differences
between how they normally act and now; then look at the Dexcom G5.
If the symptoms don't match, use the BG meter. Don't ignore changes in behavior. Take a
fingerstick and treat accordingly.
When in Doubt
Sometimes you don't feel your lows or highs. Or you may be new to diabetes and aren't even
sure what your body is telling you. When in doubt, use your BG meter to determine your BG
value before making treatment decisions.
Sometimes on your first day, it takes a little while for your body and sensor to know each
other. Until you are comfortable with making treatment decisions with the G5, use your
meter.
Just Took Acetaminophen
Any medications containing acetaminophen, such as Tylenol , Excedrin Extra Strength , or
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Nyquil can give you a false high reading. Never use the Dexcom G5 for treatment decisions
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if acetaminophen is in your system; always use your BG meter.
Use a Smart Watch
You shouldn't use your smart watch readings for treatment decisions.
If you're using a smart watch to get your Dexcom G5 information, look at your receiver or
smart device before making a treatment decision. Your smart watch reflects information sent
from your smart device and may not show your most recent sensor readings.
No Arrows or Readings
To make a treatment decision, you want to make sure all the information is there. Anytime
you don't have a number and arrow on your trend screen, use your BG meter to get a BG
value to make treatment decisions. If your trend screen shows Signal Loss or Low or High
instead of a glucose reading number, use your BG meter.
At times you may have a number but not an arrow. When this happens, use your BG meter.
No number, no arrow, don't use your Dexcom G5 for treatment decisions.
Learning what not to do isn't just about deciding if you need to use your BG meter and not
your Dexcom G5. It's also about learning when you shouldn't dose. Next, you'll learn about
"stacking" insulin.
Dexcom G5 Mobile System User Guide
Using the Dexcom G5 Mobile CGM System for Treatment Decisions
251