Hemoglobin A1c (HbA1c) with 24-hour urine collection for albumin-to-creatinine ratio (ACR) measurement

Why This Test Matters for Diabetes Care

Hemoglobin A1c (HbA1c) reflects your blood sugar control over time, giving doctors a clearer picture than daily glucose checks alone. This test is especially useful for long-term diabetes management, helping prevent complications like nerve damage or kidney issues.

Understanding the Urine Test Component

The urine portion of this test measures albumin (a protein) relative to creatinine (a waste product). High albumin levels in urine can signal kidney strain, which is common in people with diabetes. This test helps identify early kidney damage, even if blood tests alone don’t show it.

How the Test Works: Two Parts Combined

Your blood is drawn to measure HbA1c, while a urine sample is collected over 24 hours to check for protein loss. The lab compares albumin and creatinine levels to calculate the albumin-to-creatinine ratio (ACR), which is expressed as a ratio or percentage.

What to Expect Before the Test

No special preparation is needed for HbA1c, but you may be asked to collect a 24-hour urine sample by timing your urine output in a container. Drink plenty of water to help with urine flow, but avoid excessive salt or protein-rich foods that day.