Ordering Recommendation

Evaluate renal tubular damage. Monitor exposure to mercury and cadmium.

Mnemonic
B2M U
Methodology

Quantitative Chemiluminescent Immunoassay

Performed

Sun-Sat

Reported

Within 24 hours

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation

Void the urinary bladder, then drink a large glass of water and collect a urine specimen within 1 hour.

Collect

Random urine.

Specimen Preparation

Transfer one 3 mL aliquot from a well-mixed random collection to an ARUP Standard Transport Tube. (Min: 1 mL)
If pH is greater than 8, lower pH to 6-8 by adding 1M HCL. If pH less than 6, increase pH to 6-8 by adding 5% NaOH. Titrate with appropriate preservative until pH of 6-8 has been reached. Record the pH on the transport tube and test request form.

Storage/Transport Temperature

Frozen

Unacceptable Conditions
Remarks
Stability

Ambient: 8 hours; Refrigerated: 48 hours; Frozen: 2 months

Reference Interval
Effective February 18, 2014
Test Number
Components
Reference Interval
  Beta-2-Microglobulin, Urine Effective February 18, 2014
0-300 µg/L
  Beta-2-Microglobulin, ratio to CRT 0-300 µg/g CRT

Interpretive Data



No compliance statements are in use for this test.

Note
Hotline History
N/A
CPT Codes

82232

Components
Component Test Code* Component Chart Name LOINC
0020207 Creatinine, Urine - per volume 2161-8
0080052 Beta-2-Microglobulin, ratio to CRT 13485-8
0080270 pH, Urine 2756-5
0080435 Beta-2-Microglobulin, Urine 1953-9
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • B2 microglobulin
  • B2M, Urine Occupational
  • Beta 2 Test
  • Beta-2 Microglobulin, Urine Occupational
Beta-2-Microglobulin, Urine