What is it? Beta 2 Microglobulin (B2M) is a protein filtered by the kidneys and reabsorbed by the renal tubules. Measuring B2M in a random urine sample helps assess kidney tubular function and detect early kidney damage.
Why is this test done?
Detects renal tubular dysfunction
Evaluates kidney damage caused by medications or toxins
Monitors kidney health in patients with chronic kidney disease
Assists in diagnosing certain kidney disorders
When is it recommended?
Persistent proteinuria or abnormal kidney function tests
Monitoring patients receiving nephrotoxic drugs
Suspected tubular kidney disease
Follow-up for kidney disorders
Sample Required: Random Urine
Preparation: No special preparation is usually required. Follow your healthcare provider's instructions if any specific collection guidelines are provided.