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St. John Health System
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Index:

Oxalate, Total Random Urine

Order Name OXALATE RU
Test Number: xxxx3808301
Revision Date 12/12/2022
Test Name Methodology LOINC Code
Oxalate, Total Random Urine
 
SPECIMEN REQUIREMENTS
Instructions Specimen Type: Use random urine transport tube or Monovette(R) with pH stabilizer (LabCorp No. 56015). Monovette(R) instructions accompany units.
Specimen Storage: Maintain ACIDIFIED urine at room temperature. Acid prevents crystallization and conversion of ascorbate (vitamin C) to oxalate.
Specimen Collection: Collect urine and transfer to a random urine transport tube or urine Monovette(R) with pH stabilizer (LabCorp No. 56015).
Special Instructions: State patient's age and sex on the test request form and the specimen container. Specimens submitted without preservative should be acidified after receipt to pH less than or equal to 3 with 6N HCl prior to aliquoting.
Specimen Stability: Ambient: 7 days, Refrigerated : 7 days, Frozen: 14 days
GENERAL INFORMATION
Notes Labcorp Test Code: 123500
CPT Code(s) 82570, 83945
Service Provided By Labcorp Oklahoma, Inc.
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