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5390X: Oxalate Serum/plasma [3250sp] Print View
Oxalate EZA    mcmol/L 

PRIMARY
1 Serum Red Top 2 (0.7) mL   Frozen - 7 Day(s)/Refrigerated - 24 Hour(s)  
ALTERNATE
  Plasma Sodium Heparin Grn 2 (0.7) mL   Frozen - 7 Day(s)/Refrigerated - 24 Hour(s)  

Overexposure/Poisoning Determination; Biomarker

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.
Setup Schedule
Wednesday

Reported (Analytical Time)
4 days

CPT Code
83945

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Notes
Reject Criteria: Received room temperature; received refrigerated; gray top tube (sodium fluoride/potassium oxalate); polymer gel separation tube

Transport Temperature: Frozen


Specimen Stability: Room temperature: Not stable






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