Assess the body pool size of oxalate.
Monday and Friday
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).
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)
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
Samples that are not plasma. Samples not received frozen.
After separation from cells: Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 week
Less than or equal to 1.9 µmol/L
This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.
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