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Beta-2 Microglobulin, Urine

Test ID: 


CPT code:



β2-Microglobulin, Urine

Clinical Use:

Evaluate renal disease; monitor certain types of malignancies and AIDS

Specimen Type:

Urine (random)

Requested Volume: 

10 mL

Minimum Volume: 

1 mL

Container Type: 

Plastic urine container (do not acidify)


Patient should empty the bladder, then drink a large glass of water and collect a urine sample within one hour. Significant loss of β2-microglobulin activity may occur in acidic urine (pH ≤6). Urine should always be collected at high diuresis and the pH adjusted to between 6 and 8 with 1 mol/L sodium hydroxide.

Storage Instructions:


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