Regular monitoring of blood glucose provides a good overview about metabolic condition. An intensive control of the measured values allows an evaluation if blood glucose levels have become worse. If this is the case the patient can quickly get in contact with his physician to get advice how to optimize the treatment.
This can help to prevent metabolic decompensation and diabetic late complications. Self monitoring of blood glucose is extremely important for insulin-dependent diabetics as they calculate the dose of insulin on glucose levels.
It is also very important to document the measured glucose results in a special diary to show it to the physician. Daily averages give an idea of the actual HbA1c and the quality of diabetes therapy.