Test Code OXCO1 Oxalate, Random, Urine
Specimen Required
Only orderable as part of a profile. For more information see ROXUR / Oxalate, Random, Urine.
Patient Preparation: Avoid taking large doses (>2 g orally/24 hours) of vitamin C prior to specimen collection.
Supplies: Urine Tubes, 10 mL tube (T068)
Container/Tube: 10-mL plastic tube or a clean, plastic container with no metal cap
Specimen Volume: 7 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative.
3. Specimen pH should be between 4.5 and 8 and will stay in this range if kept refrigerated. Specimens with pH above 8 may indicate bacterial contamination, and testing will be cancelled. Do not attempt to adjust pH as it will adversely affect results.Useful For
Monitoring therapy for kidney stones
Identifying increased urinary oxalate as a risk factor for stone formation
Diagnosis of primary or secondary hyperoxaluria
Reporting Name
Oxalate, Random, U (mmol/L)Specimen Type
UrineSpecimen Minimum Volume
1 mL
Specimen Stability Information
Specimen Type | Temperature | Time |
---|---|---|
Urine | Refrigerated (preferred) | 14 days |
Frozen | 14 days | |
Ambient | 72 hours |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Reference Values
Only orderable as part of a profile. For more information see ROXUR / Oxalate, Random, Urine.
No established reference values
Day(s) Performed
Monday through Saturday
Report Available
3 daysSpecimen Retention Time
7 daysPerforming Laboratory

CPT Code Information
83945
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
OXCO1 | Oxalate, Random, U (mmol/L) | 15086-2 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
OXCO1 | Oxalate, Random, U (mmol/L) | 15086-2 |