The error of blood glucose meters is sometimes high and sometimes low, and there is no certain pattern. For people with diabetes, blood should be taken regularly from a vein to measure blood glucose or glycated hemoglobin, so that the measured blood glucose level is accurate and reliable.
The factors that cause blood glucose meter errors generally include: 1) The test strip is not fully inserted into the bottom of the test strip hole during testing. 2) The test strip moves during testing, which can also lead to inaccurate results. 3) After the blood collection site is disinfected with alcohol, residual alcohol remains and the alcohol reacts with chemicals on the test strip, leading to inaccurate results. 4) Insufficient blood collection can also lead to unsuccessful testing or low results. The test result is low. On the contrary, too large a blood drop will also affect the test results. In addition, poor peripheral circulation or excessive squeezing of the limbs during blood collection may also make the test results inaccurate. In general, the blood glucose meter needs to be calibrated by a regular company after a period of time, so as to ensure the accurate results of the blood glucose meter testing.