Understanding Your Urine Albumin/Creatinine
The urine albumin-to-creatinine ratio (UACR) detects small amounts of protein in the urine, one of the earliest signs of kidney damage. It is often used to monitor diabetes and high blood pressure.
What It Measures
Healthy kidneys keep protein in the blood and out of the urine. When kidneys are stressed, tiny amounts of a protein called albumin start leaking into the urine, often long before other signs appear.
The test compares albumin to creatinine in a single urine sample to give an accurate ratio, without needing a 24-hour collection.
What Your Results Can Mean
| Result | What It Means |
|---|---|
| NormalLittle or No Albumin | Your kidneys are not leaking significant protein, a reassuring sign. |
| Mildly ElevatedEarly Kidney Strain | Small amounts of albumin, an early warning that is often reversible with good control of blood pressure and blood sugar. |
| ElevatedMore Significant Leak | Larger amounts of protein, warranting closer attention to protect kidney function. |
What’s Most Important to Know
Because it catches kidney strain early, the UACR is especially valuable for people with diabetes or high blood pressure, when there is still time to act.
A single mildly elevated result is often repeated to confirm, since exercise, infection, or dehydration can raise it temporarily. Dr. Mui will explain your result and any steps to protect your kidneys.
This page is for general education and does not replace a conversation with your doctor about your specific results. Want to review your results? Book a visit and we’ll go through them together.