Lifescan SPD2410BD manual Comparing Meter and Laboratory Results

R E S U L T S

Comparing Meter and Laboratory Results

The OneTouch® SureStep® System is plasma calibrated. Because most laboratories mea- sure plasma glucose, you can directly com- pare your meter test results with the lab results. However, your meter blood glucose test result may differ somewhat from your laboratory result due to normal sources of variation. Meter results can be affected by factors and conditions that do not affect laboratory results in the same way. Your meter glucose result should agree with a laboratory result within ±20% most of the time under normal conditions. A result with- in that range is considered accurate when testing with the OneTouch® SureStep® Meter. However, results can differ by more than

±20% in some situations. Such results are more likely to occur under the following conditions:

◆If you have recently eaten, exercised, taken medication, or experienced stress.5 If you have eaten recently, the blood glucose level from a fingerstick can be up to 3.9 mmol/L (70 mg/dL) higher than that of a venous sample (blood drawn from a vein) used for a lab test.6

◆For the most accurate comparison between meter and laboratory results, the meter test must be done within 10 to 15 minutes of the laboratory test. If samples are taken more than 15 min- utes apart, the two tests could have very different results because blood glucose levels can change significantly within short periods of time.

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