The value measured by the expired blood sugar test strip will not only be high, but sometimes it will be low. In short, the data is disordered and the reference value is lost, so the blood glucose test strip is best used within the validity period.
Most of the blood sugar test strips have a shelf life of 24 months, but they must be stored in a hidden, cool and dark environment. If the above storage requirements are not met, the shelf life should be appropriately shortened. The principle of blood sugar test strips to test blood sugar is to use an active enzyme for detection. After the expiration date, the activity of the active enzyme will drop significantly, affecting the accuracy of the test results.
In addition, the results of blood glucose test strips cannot be viewed mechanically, and a comprehensive analysis of clinical manifestations must be combined to guide clinical medication.