Oxalate, Serum/Plasma Test (3250SP)
||Overexposure/Poisoning Determination; Biomarker; This test is New York State approved.
||Biological Marker, Poison
||Enzymatic Assay (EZA)
||2 mL Serum or Plasma
||Plastic container (preservative-free)
||Serum: Collect sample in Red top tube
Plasma: Collect sample in Green top tube (Sodium Heparin)
Promptly centrifuge with refrigeration and separate Serum or Plasma into chilled plastic screw capped vial using approved guidelines. Freeze immediately and ship with dry ice.
Ascorbic acid at very high concentration (exceeding 51 mcmol/mL plasma) can interfere. It is recommended that patients refrain from taking excessive amounts of vitamin C or vitamin C rich food for at least 48 hours prior to collection.
|Light Protection Required
||Room Temperature: Not Stable
Refrigerated: 1 day(s)
Frozen (-20 °C): 7 day(s)
||Received Room Temperature. Received Refrigerated. Gray top tube (Sodium Fluoride / Potassium Oxalate). Polymer gel separation tube (SST or PST).
||Oxalate [EZA]: ascorbic acid
|Day(s) Test Set-up / TAT
||[EZA] Wednesday / 1 day
|Suggested CPT Code
|Test Summary Sheet
*Rejection criteria pertain to clinical specimen submissions only.
**Stated minimum volume allows for a single analysis. Repeat analysis will not be performed.