Hemoglobin A1c (HbA1c) with 24-hour urine collection for creatinine clearance

Why This Test Matters for Diabetes Management

HbA1c reflects your blood sugar levels over time, giving doctors a clearer picture of how well your diabetes is controlled. It’s a key tool for adjusting treatments like medication or diet. A stable HbA1c level helps prevent long-term complications like nerve damage or kidney issues.

Understanding Your Urine Sample for Kidney Function

The 24-hour urine creatinine test helps assess how well your kidneys filter waste. This is important because diabetes can damage kidneys over time. Your doctor may use this alongside other tests to check for kidney problems.

How the Test Works

Your blood is tested for HbA1c using a standard immunoassay method. Your urine is collected over 24 hours to measure creatinine, which is processed via a method like nephelometry or enzymatic analysis. Results are compared to standard ranges to interpret kidney function.

What to Expect Before the Test

For the urine test, you’ll need to collect all urine for a full 24-hour period. Drink regular fluids but avoid special diets unless instructed. For the blood test, you’ll have a simple fingerstick or vein draw, usually done at your doctor’s office or lab.