Esoterix
Specimen Requirements
Specimen
Serum (preferred), or plasma, frozen
Volume
3 mL
Minimum Volume
1 mL (Note: This volume does not allow for repeat testing.)
Container
Gel-barrier tube, lavender top (EDTA) tube, or tube green-top heparin tube
Collection
Serum or plasma must be separated from cells within 45 minutes of venipuncture. Send serum or plasma in a plastic transfer tube.
Storage Instructions
Freeze
Stability Requirements
Temperature Period Room Temperature 7 days Refrigerated 7 days Frozen 2 years
Causes for Rejection
Gross hemolysis, gross lipemia, incorrect specimen type
Test Details
Methodology
Liquid chromotography tandem mass spectrometry (LC/MS/MS)