Casandra
Casandra Test Code QD23120Version 1 (DRAFT)
Performing Lab
Oxalic Acid, Pediatric Urine with Creatinine
Clinical Use
Order TestUse
This test is often used to screen for hyperoxaluria and assess kidney function in children. It can help to determine the cause of kidney stones and monitor treatment.
Special Instructions
Patient should refrain from taking excessive amounts of Ascorbic Acid or Oxalate‑rich foods (i.e, spinach, coffee, tea, chocolate, rhubarb) for at least 48 hours before the collection period.
Limitations
Not provided.
Test Details
Methodology
Automated Analyzer (Clinical Chemistry)
Biomarkers
Creatinine
AnalyteCreatinine • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Oxalic Acid
AnalyteOxalic Acid • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Urine
Volume
Not provided
Minimum Volume
3 mL
Container
sterile, plastic leakproof container
Collection Instructions
10 mL second voided urine, acidified with 6N HCl before aliquoting for testing
Patient Preparation
refrain from taking excessive amounts of Ascorbic Acid or Oxalate‑rich foods for at least 48 hours before the collection period
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 7 days |
| Frozen | 24 days |