Lab test

Microalbumin Urine Test - Kidney Health

A microalbumin urine test measures small amounts of albumin in a single urine sample.

Typical price

From $118

Results

1-3 business days

Preparation

See preparation notes below

Sample

Blood draw or sample collection at a local center

A microalbumin urine test measures small amounts of albumin in a single urine sample. Albumin is a protein that normally stays in the blood; small leaks into urine can be an early sign of kidney damage, especially in people with diabetes or high blood pressure. The test is often reported with a urine creatinine value as an albumin-to-creatinine ratio to correct for sample concentration.

• Urine microalbumin A small amount of albumin protein measured in urine to detect early kidney changes.
• Urine creatinine Used to normalize the albumin measurement.
• Albumin-to-creatinine ratio A calculated value that adjusts albumin for urine concentration.

• People with diabetes.
• Individuals with high blood pressure.
• Those with a family history of kidney disease.
• People monitored for early kidney damage.
• Anyone with risk factors for chronic kidney disease.

• No fasting is required for a random microalbumin urine test.
• A clean-catch midstream sample is usually requested.
• Stay normally hydrated unless told otherwise.
• Avoid heavy exercise right before collection.
• Tell the provider about medications that affect the kidneys.

An elevated urine microalbumin or albumin-to-creatinine ratio can be associated with early kidney changes, particularly when it persists on repeat testing. A normal result is generally reassuring, though a single sample can be affected by exercise, infection, or other temporary factors. Results are interpreted with diabetes and blood pressure history. Discuss the findings with a healthcare provider.

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