I was recently diagnosed with Type 1 diabetes. My fasting blood sugar is 110 mg/dL, and post-meal blood sugar is 134 mg/dL. My C-peptide is 0.31, serum insulin level is 85.1, and islet cell antibodies are negative. I am taking Huminsulin N 14 units and Human Actrapid 12 units daily. My thyroid tests show T3 at 0.82, T4 at 4.10, and TSH at 9.31, and I take thyroid medicine on alternate days. Are my diabetes and thyroid levels under control?
Your blood sugar readings suggest that your diabetes is currently under fairly good control with the present insulin treatment. A fasting blood sugar of 110 mg/dL and a post-meal value of 134 mg/dL are close to the usual target range for many people with Type 1 diabetes. Your low C peptide level of 0.31 indicates that your pancreas is producing very little natural insulin, which supports the diagnosis of Type 1 diabetes. Negative islet cell antibodies can occur in some patients and do not completely rule out Type 1 diabetes. Your serum insulin level may appear high because you are taking insulin injections, which can increase the insulin measured in your blood. Regarding your thyroid tests, the TSH level of 9.31 is higher than normal, while T3 and T4 levels are on the lower side. This suggests that your thyroid function may not yet be fully controlled. Taking thyroid medicine on alternate days may not be enough for you. You should discuss this with your doctor, as the dose or frequency may need to be adjusted. Regular monitoring of HbA1c, thyroid profile, diet, and insulin timing is important for long term control.
