Oxalate, Plasma
Ordering Recommendation

Assess the body pool size of oxalate.

Quantitative Spectrophotometry
Monday and Friday
1-5 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
Patient should avoid ingestion of vitamin C for 24 hours prior to sample collection. 
Green (lithium or sodium heparin) or Lavender (EDTA) or pink (K2EDTA). 
Specimen Preparation
Place tube on wet ice immediately after collection.  Separate plasma from cells ASAP or within 1 hour of collection. Transfer 2 mL plasma to an ARUP Standard Transport Tube and freeze immediately. (Min: 1.5 mL) 
Storage/Transport Temperature
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered. 
Unacceptable Conditions
Samples that are not plasma.  Samples not received frozen. 
After separation from cells: Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 week 
Reference Interval
Less than or equal to 1.9 µmol/L
Interpretive Data

Statement B: Compliance Statement B: For laboratory developed tests not using a RUO kit, and for FDA approved, cleared or 510(k) exempt assays with alterations. This test was developed and its performance characteristics determined by ARUP Laboratories. The U. S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

Hotline History
Component Test Code*Component Chart NameLOINC
2011698Oxalate, Plasma15085-4
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please view this test within the Laboratory Test Directory found at www.aruplab.com