Dexcom stelo - Accuracy

Accuracy
Issue
Why aren't your BGmeter value and reading the exact same number?
Solution
Accuracy
One reason is they're measuring glucose in different fluids. The BGmeter measures
blood glucose while the sensor measures interstitial fluid. And if your healthcare
provider did a lab test at the same time, the lab result might give you a third number.
The lab test is considered the most accurate number.
Other reasons there could be a difference between your BGmeter and the Stelo
Glucose Biosensor System are:
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Hand cleanliness: Wash your hands with soap and water (not hand sanitizer) and
dry them. Then test. Many inaccurate BG meter values are from hands not being
washed thoroughly before testing.
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Sensor's first day: With newly inserted sensors, the differences between your BG
meter and the sensor reading might be greater. Generally, the numbers get closer
over the first 24 hours.
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Pressure on sensor: Sometimes when something is pressing on your sensor, for
example, if you're lying on it, it can affect your sensor readings. Relieve the
pressure and the numbers should get closer.
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Glucose changing quickly: When your glucose is rapidly changing, it can be
more difficult to compare your BG meter value and sensor reading because blood
glucose changes a little before interstitial glucose. The numbers should get closer
when your glucose stabilizes.
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Test strips: Make sure your test strips are stored as directed and not expired.
Also, make sure to use enough blood on the test strip.
You can log your BGmeter value in the app's Events tab.
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