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HelpTest Code OXCR Oxalate : Creatinine Rato, Urine
Specimen Requirements
Specimen Type: Random urine
Container/Tube: Screw Capped sterile urine container.
Minimum Volume: 20 mL urine
Collection Instructions: Collect mid-stream urine in preservative-free urine container. Unacidified Urine.
Sample Stability
** Preferred temperatures for storage prior to and during shipping to NUH **
| Specimen Type | Random Urine |
|---|---|
| Ambient | Unacceptable |
| Refrigerate | 6 days |
| Frozen | 1 month |
Reference Interval
| Age (years) | mmol/mmol |
|---|---|
| 1 to <6 months | 0.07 - 0.22 |
| 6 months to <1 year | 0.06 - 0.17 |
| 1 to <2 years | 0.05 - 0.13 |
| 2 to <3 years | 0.04 - 0.10 |
| 3 to <5 years | 0.03 - 0.08 |
| 5 to < 7 years | 0.03 - 0.07 |
| 7 to <10 years | 0.02 - 0.06 |
| 10 to <14 years | 0.02 - 0.06 |
| 14 to 17 years | 0.02 - 0.06 |
Days and Times Performed
Friday, TAT 2-8 days
Methodology
Spectrophotometry
Service Code
0031973
Update
Last updated 05/09/2024
Updated on Sample Stability Ambient, Refrigerate and Frozen.
Unacceptable Condition
| Haemolysis | NA |
|---|---|
| Icterus | NA |
| Lipaemia | NA |
| Others | NA |
Useful For
Investigation of renal calculi