Beta-2-Microglobulin, Urine
0080432
Ordering Recommendation
 
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.
Submit With Order
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 per gram of creatinine0-​300 µg/g CRT
Interpretive Data
 
Note
 
CPT Code(s)
82232
Components
Component Test Code*Component Chart Name
0020207Creatinine, Urine - per volume
0080052Beta-2-Microglobulin, ratio to CRT
0080270pH, Urine
0080435Beta-2-Microglobulin, Urine
* 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