Kidney system

Microalbumin / Creatinine Ratio

Microalbumin / Cr

A sensitive marker of early kidney damage.

What is it

Microalbumin / Creatinine Ratio — in plain English.

The urine microalbumin-to-creatinine ratio detects small amounts of albumin in urine, which can indicate early kidney damage before changes appear in blood markers.

Why it's measured

What Microalbumin / Cr can reveal.

Microalbuminuria has been associated with early kidney damage and cardiovascular risk in published research.

Reference range

Where most laboratories draw the standard line.

Standard laboratory reference

< 30 mg/g

Reference ranges vary by laboratory. Your individual reference range will appear on your test report and should be interpreted by your physician in the context of your overall health profile.

What results may indicate

Higher vs. lower Microalbumin / Cr — at a high level.

Elevated

Has been associated with early kidney damage in research literature, particularly in diabetes and hypertension.

Lower

Generally considered favorable.

These associations are general. They are not a personal diagnosis or prediction. Discuss your individual results with your physician in the context of your full health profile.

When it's measured

When Microalbumin / Cr is typically run.

Used in screening for early kidney damage, especially in diabetes and hypertension.

Related markers

Often measured alongside Microalbumin / Cr.

Measured in

Microalbumin / Cr is one of 160 biomarkers in the Apex Panel.

A complete look at your heart, hormones, metabolism, inflammation, and longevity systems — drawn at Quest or LabCorp, reviewed by a U.S.-licensed physician.

Explore the Apex Panel
160 biomarkers13 body systemsPhysician-reviewed
Back to all biomarkers

This information is for general educational purposes only and is not medical advice. Lab results alone are not intended to diagnose, treat, or cure any condition and do not replace the advice of a healthcare provider. OPTML does not offer medical advice, a diagnosis, medical treatment, or any form of medical opinion.