| Methodology: |
High Performance Liquid Chromatography
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| Performed: |
Varies
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| Reported: |
1-6 days
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| Specimen Required: |
Collect: One 6 mL green (sodium or lithium heparin) or plasma separator tube.
Transport: 1 mL plasma, frozen. (Min: 0.5 mL) Submit specimen in an ARUP Amber Transport Tube.
Remarks: CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are requested. Protect from light during collection, storage, and shipment. Specimens collected in EDTA provide a lower value of riboflavin concentration, therefore EDTA is not acceptable.
Unacceptable Conditions: Non-frozen, hemolyzed, and lipemic specimens. EDTA plasma. Serum.
Stability: Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 month
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