Whole blood is the preferred specimen for thiamine assessment. Approximately 80% of thiamine present in whole blood is found in red blood cells.
Specimen Collection Requirements
Plasma, one green (sodium or lithium heparin) or lavender (EDTA) top tube
Separate plasma from cells within one hour of collection. PROTECT FROM LIGHT within one hour of collection, during storage and transport.
Specimens not protected from light, hemolyzed or specimens other than heparin or EDTA plasma.
AFTER SEPARATION FROM CELLS: Ambient: Unacceptable; Refrigerated: 1 week; Frozen at-20°C: 6 months
Separate specimens must be submitted when multiple tests are ordered.
Quantitative High Performance Liquid Chromatography
Friday, September 29, 2017 01:58:44 PM
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