Oxalate, Urine
| CPT Code(s): | 83945 |
| Specimen Required: | Patient Preparation:Patient should avoid ingestion of vitamin C prior to collection. Collect:24-hour urine. Refrigerate during collection. Specimen Preparation:Thoroughly mix entire collection (24-hour) in one container. Preserve the specimen as described below. Freeze specimens immediately after aliquoting. Do not exceed 4 mL in 10 mg Sulfamic Acid tubes. Contact RDL Client Services at (888) 431-7474 to order 10 mg Sulfamic Acid tubes used for aliquoting and preservation of the specimen.Preserved: Transfer 4 mL aliquot to an RDL Transport Tube with 20 mg Sulfamic Acid (RDL supply #48098). Available online through eSupply using RDL Connector. Mix well. (Min: 1.5 mL) Unpreserved: If the collection tube with Sulfamic Acid is not available, transport a 4 mL unadjusted aliquot of urine. (Min: 1.5 mL) Storage/Transport Temperature:CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered Stability:After collection complete: Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 month |
| New York DOH Approval Status: | This test is New York DOH approved. |
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