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Test Code 29391 Dexamethasone

Important Note

Assay Category

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This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Specimen Requirements

Preferred Specimen(s):  0.85 mL serum collected in a (red-top) tube (no gel)

Alternate Specimen(s):  Plasma collected in: Sodium heparin (green-top), lithium heparin (green-top) or sodium flouride (gray-top)

Minimum Volume:  0.25 mL

Collection Instructions:  Draw specimen between 8:00am  and 10:00am

Transport Temperature:  Refrigerated (cold packs)

Reject Criteria:  Moderate hemolysis * Serum Separator Tubes (SST(R)) * Received at room temperature

Specimen Stability Information

Room Temperature:  24 hours

Refrigerated: 7 days

Frozen:  2 years