β2-Microglobulin, Urine
Also known as: Beta-2 Microglobulin, Urine
Use
Evaluate renal disease; monitor certain types of malignancies and AIDS
Special Instructions
Not provided.
Limitations
This test has not been validated for the measurement of osmolality of fetal urine, which means results from fetal samples may not be accurate.
Methodology
Immunoassay (ICMA)
Biomarkers
β2-Microglobulin
Analyte
LOINC Codes
- 1953-9 - B2 Microglob Ur-mCnc
- 1953-9 - B2 Microglob Ur-mCnc
Result Turnaround Time
3-4 days
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
10 mL
Minimum Volume
1 mL
Container
Plastic urine container (do not acidify)
Collection Instructions
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.
Causes for Rejection
Fetal urine sample received
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 7 days |
| Frozen | 14 days |
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