Microalbumin-to-Creatinine Ratio in Urine (24-hour collection)

Why This Test Matters for Your Health

Your kidneys normally filter waste and excess protein from your blood. If they struggle, small amounts of albumin can leak into urine. This test detects early signs of kidney issues, especially in people with diabetes, high blood pressure, or family history of kidney problems. It’s often used alongside other tests to monitor kidney health over time.

How the Test Works

You’ll collect all your urine for 24 hours and return it to the lab. The lab then measures albumin and creatinine levels in your urine sample. The ratio helps identify if your kidneys are working as they should, especially in people at higher risk for kidney problems.

What to Expect Before the Test

No special preparation is needed, but drink plenty of water to help your kidneys filter properly. Avoid certain medications (like NSAIDs) that may affect kidney function, but always check with your doctor first. If you have diabetes, follow your usual routine unless instructed otherwise.

Common Results and Next Steps

Results are typically compared to your individual baseline or risk profile. Elevated ratios may signal early kidney damage, prompting further testing or adjustments to your treatment plan. Your doctor will discuss findings with you and may recommend follow-ups or lifestyle changes.