Beta-2-microglobulin urine

Specimen:

Patient should empty bladder then drink a large glass of water.

Collect urine 1 h later and deliver promptly to the laboratory.

Method:

Immunoassay.

Reference Interval:

< 0.2 mg/L.

< 30 mg/mol creatinine.

Application:

Ancillary test, of limited clinical utility, in the investigation of renal tubulo-interstitial disorders.

Interpretation:

Elevated levels may help to define the degree of tubular dysfunction.

Reference:

Tomlinson PA. Pediatr Nephrol 1992; 6: 565-571.