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Test Code OXALTU Oxalate, Total Urine  

Important Note

Evaluate individuals with calcium oxalate renal calculi.
 

Additional Codes

20482

Specimen Type

24-hour urine

Preferred Collection Container

24 hour urine container with no preservative

Collection Instructions

Refrigerate during collection.  24 hour specimen should be transported to laboratory immediately to be measured and aliquoted.  4mL aliquot of well mixed 24 hour collection should be frozen immediately

Collection Volume

4mL aliquot of well mixed unpreseved 24 hour urine collection

Minimum Collection Volume

1.5 mL

Testing Volume

1.5 mL

Rejection Criteria

Critical frozen

Specimen Storage and Stability

After collection complete: Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 month

Day(s) and Time(s) Performed

Monday through Friday

Test Alias

Hyperoxaluria
 

CPT Coding

83945

EPIC Code

LAB421

Methodology

Quantitative Spectrophotometry
 

Acceptable Collection Container

24 hour urine container, no preservative`

Transport

Frozen

Turn Around Time

2-5 days

LOINC

Creatinine, Urine - per volume    2161-8, Creatinine, Urine - per 24h    2162-6, Oxalate, Urine - per 24h    2701-1, Oxalate, Urine - per volume    2700-3, Total Volume    19153-, Hours Collected    30211-7