BETA - 2 - MICROGLOBULIN, URINE

What this test checks

Measures beta-2 microglobulin in urine. Normally absorbed back by healthy kidneys; rising urine levels suggest early kidney tubule damage.

Why do people get this test?

Detects subtle kidney damage before standard tests turn abnormal.

When you should consider this test

• Long-term medication use that can affect kidneys
• Heavy metal exposure
• Early kidney damage screen

How to prepare

Spot urine sample — instructions at collection.