Diabetes affects nearly all of your body, so managing blood glucose, or blood sugar, levels can help prevent the health issues that may arise with diabetes. Patients with diabetes will get assistance from their physician to create a self-care plan, but a good rule of thumb is to manage your ABCS. A is for A1C, the test that informs you and your health care team of your average blood sugar level over the past two or three months. This helps determine the type and amount of diabetes medicine you need. A1C tests are needed at least twice a year. For many patients with diabetes, the goal is to get an A1C number of 6.5 or below. Again, your health care team will help decide a target A1C number and a plan to meet it.