Information on comparing test results from the OneTouch Verio Flex® meter to lab results including guidelines for obtaining an accurate meter to lab comparison and instructions for testing with your meter at the lab.
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OneTouch Verio Flex® meter
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Comparing meter results to laboratory results:
Results obtained from the OneTouch Verio Flex® Meter and laboratory tests are reported in plasma-equivalent units. However, your meter result may differ from your lab result due to normal variation. A result from your OneTouch Verio Flex® Meter is considered accurate when it is within 0.83 mmol/L of a laboratory method when the glucose concentration is lower than 5.55 mmol/L and within 15% of a laboratory method when the glucose concentration is 5.55 mmol/L or higher.
Meter results can be affected by factors that do not affect lab results in the same way. Specific factors that may cause your meter result to vary from your lab result may include:
You have eaten recently. This can cause a result from fingertip testing to be up to 3.9 mmol/L higher than a lab test using blood drawn from a vein.1
1Sacks, D.B.: "Carbohydrates." Burtis, C.A., and Ashwood E.R. (ed.), Tietz Textbook of Clinical Chemistry, Philadelphia: W.B. Saunders Company (1994), 959.
Your hematocrit is above 60% or below 20%.
You are severely dehydrated.
For additional information, refer to the OneTouch Verio® Test Strip Insert.
Guidelines for obtaining an accurate meter to lab comparison:
Before going to the lab:
Perform a control solution test to make sure your meter is working properly.
Do Not eat for at least 8 hours before you test your blood.
Take your meter and testing supplies with you to the lab.
Testing with your OneTouch Verio Flex® Meter at the lab:
Test within 15 minutes of the lab test.
Use only a fresh, capillary blood sample from your fingertip.
Follow all instructions in your Owner's Guide for performing a blood glucose test.
Comparing your meter results to those taken from another meter:
Comparing your blood glucose test results taken with this meter to your results taken from a different meter is not recommended. Results may differ between meters and are not a useful measure of whether your meter is working properly.
