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β2-Microglobulin, Urine

CPT: 82232
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Synonyms

  • Beta-2 Microglobulin, Urine

Expected Turnaround Time

2 - 4 days


Related Information


Related Documents


Specimen Requirements


Specimen

Urine (random)


Volume

10 mL


Minimum Volume

1 mL (Note: This volume does not allow for repeat testing.)


Container

Plastic urine container (do not acidify)


Collection

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

Refrigerate


Stability Requirements

Temperature

Period

Room temperature

7 days

Refrigerated

7 days

Frozen

14 days

Freeze/thaw cycles

Stable x3


Test Details


Use

Evaluate renal disease; monitor certain types of malignancies and AIDS


Methodology

Immunochemiluminometric assay (ICMA)


Reference Interval

0−300 μg/L


LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
010173 Beta-2 Microglobulin, Urine 1953-9 010173 Beta-2 Microglobulin, Urine ug/L 1953-9

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