Urine Microalbumin
Microalbumin refers to small, hard-to-detect amounts of the protein albumin in the urine. The test uses methods sensitive enough to catch leakage too subtle for a standard urine dipstick.
Detecting these tiny amounts allows very early recognition of kidney stress, especially in people with diabetes or high blood pressure. Catching it early creates an opportunity to protect the kidneys before more obvious damage develops.
An elevated microalbumin level suggests small amounts of albumin are leaking through the kidney filters, an early warning sign in diabetes and high blood pressure. Because exercise, fever, and infection can raise it briefly, an abnormal result is typically confirmed with repeat testing.
A low microalbumin level is normal and reassuring, suggesting the kidney's filters are not leaking measurable protein.
On the albumin/creatinine ratio, under 30 mg/g is generally considered normal. Values are usually confirmed over more than one sample, since a single reading can be affected by short-term factors.
Sources
- Microalbumin Creatinine Ratio - MedlinePlus
- Albuminuria: Albumin in the Urine - National Kidney Foundation
Educational context only, not medical advice or a diagnosis. Reference ranges vary by lab, age and sex; always discuss your results with a clinician.