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Test Code OXALS Oxalate, Serum Plasma

Specimen Required

2 mL serum or plasma c

Specimen Minimum Volume

0.7 mL

Specimen Stability

Room temperature: Not stable Refrigerated: 24 hours Frozen: 7 days

Rejection Due To

Received room temperature Received refrigerated Sodium fluoride/potassium oxalate (gray-top) tube Polymer gel separation tube (PST)

Day(s) and Time(s) Performed

Set up: Wed a.m

Method Name

Enzymatic Assay (EZA)

Collection Container / Tube

Preferred: Red Top Tube (no gel)
Other Acceptable Container: Sodium heparin (green top) tube

Transport Container

Plastic screw-cap vial

Transport / Storage Conditions

Frozen

Special Instructions

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.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. 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.

Reference Values

See Laboratory Report

CPT Codes

83945

Analytic Time

 Report available: 2 days after set-up

Alias/See Also

LAB3292