A blood sugar test strip is one of the items that people who have type 2 diabetes need in order to self-monitor their blood sugar levels in order to manage and control his or her diabetic symptoms. The strip is disposable, and when blood is drawn onto the strip, a chemical on the strip reacts with the glucose, or sugar, in the blood. The blood sugar test strip is then inserted into the glucometer, which then calculates the sugar levels in the blood. The results typically are available on the meter display within a matter of seconds.
Some strips come with a special code that indicates the characteristics of that batch of strips. The strips can vary from batch to batch, and the code allows the glucometer to be calibrated to that batch. If the meter is not calibrated correctly, the results can be inaccurate. Some strips have the information encoded on the blood sugar test strip itself, so the user doesn't have to input the code.
Usually, self-monitoring tests are conducted before and after meals and at bedtime. The frequency of testing for each patient, however, is determined by his or her physician. Additionally, the criteria for unacceptably high or low blood sugar ranges for any individual would be discussed with a doctor as well, in order for the diabetic person to understand and appropriately act upon the results of the testing for blood sugar.
Blood sugar test strips often come included with the purchase of a blood sugar monitoring kit. The kit usually includes a lancet, a meter and the blood sugar test strips. If blood sugar test strips are purchased separately, they must be compatible with the exact blood sugar monitor being used in order to assure accuracy of the results. Other ways one can ensure the accuracy of a blood sugar test strip include using it before its expiration date; avoiding the storage of test strips where they might be subject to excessive heat or humidity or be exposed to air; and avoiding the loose storage of the strips unless they were foil-wrapped by the manufacturer.
Some meters will save the glucose level information in memory for reporting results to a doctor at a later time. Regardless of whether a meter saves the results, keeping a log of the results is important for managing blood glucose levels. It helps one understand how blood sugar levels are affected by physical activity, foods, medicine and time of day.
The meter is used to detect low blood glucose levels or high blood glucose levels for prompt attention and correction. For example, if blood glucose level readings are low, the diabetic person can immediately handle it by ingesting sugar items, such as drinking juice or pop and eating raisins, sugar, honey or maple syrup as directed by a physician. After waiting 15 minutes, the blood sugar test can be done again. If the blood glucose level readings are high, the diabetic can walk around for another 15 minutes before retesting. Testing the blood regularly with blood sugar test strips and a reliable meter is a vital part of avoiding complications and managing diabetes.