OXALATE, SERUM/PLASMA

Test Documentation
Specimen Required
Draw blood in a plain red-top tube. Centrifuge, separate serum from cells, and send 3.0 mL serum (1.2 mL minimum) frozen in a screw-capped plastic vial.

Alternate Specimen
Plasma: Lavender EDTA

Rejection Criteria
SST, PST

Methodology
Enzymatic Assay

Stability
Room temperature: not stable; Refrigerated: 1 day; Frozen (-20°C): 7 days

Reference Range
By report

Performed
Wednesday

Turnaround Time3-7 days
Test CodeOXA
CPT-4 Code (s)
83945
LOINC Codes
2699-7

Warde
Medical
Laboratory