Test Overview
Method
Immunoturbidimetry
Result Included
Creatinine; β-2-Microglobulin; β-2-Microglobulin/Creatinine Ratio
Specimen
Specimen Type
Urine (Random)Volume
Sample Volume
5 mL
Collection & Handling
Collection Instructions
Collect 2nd morning urine sample: Patient should void and discard first morning urine.Then drink a glass of water and collect another urine sample within 1 hour.
Handling Information
Check pH and adjust pH to 6 – 8 with 1.0M NaOH immediately. Freeze an aliquot at -20°C. Store and send frozen.
Stability
| Refrigerated | Frozen |
|---|---|
| Unacceptable | 1 month |
If the specimen thaws, it is unsuitable for analysis. Unstable at pH below 5.5
Rejection Criteria
| Criteria | Specification |
|---|---|
| Specimen | Not frozen or pH below 5 |
Performance & Interpretation
Turnaround Time
10 days
Results
Name
Units
Reference Range
Conversion
-
Creatininemmol/L0 y, M and F: 0.4 - 5.2
1 m, M and F: 0.3 - 9.0
2 y, M and F: 1.1 - 12.8
5 y, M and F: 1.2 - 25.3
≥17 y, M: 2.4 - 32.3
≥17 y, F: 1.1 - 21.8 -
β-2-Microglobulinµg/LAdult Male: 0 - 212
Adult Female: 0 - 212
Comment
The reported reference interval is for adults only and has not been verified in those <17 years of age. Interpret results with caution.
-
β-2-Microglobulin/Creatinine Ratioµg/mmol cr.Male and Female: 0 - 29
Comment
The reported reference interval is for adults only and has not been verified in those <17 years of age. Interpret results with caution.
Referral Location
Canada
Interface & Setup
HL7 Interface Codes
| Order Code | Result Name | Result Codes | Units |
|---|---|---|---|
| B2MG U | CREATININE, R. URINE | 20079 | mmol/L |
| BETA 2 MICROGLOBULIN, R. UR | 20093 | ug/L | |
| RATIO | 20094 | ug/mmol Creat |
Test Version
Last Updated
2023-05-05