Vitamin B1

Source	Blood
Mnemonic	VITB1
Specimen Requirements	1 x 5 mL lavender top EDTA tube Minimum 2.0 mL plasma Minimum Blood Volume for Patients less than 45 kg (100 lb) Including Neonates and Pediatrics Protect from light by wrapping entire tube in foil.
Specimen Handling	PSC: Centrifuge, pour off and transport plasma on ice to DSC. RRL & extra-regional: Centrifuge, pour off and freeze plasma prior to transport to DSC.
Additional Information
Testing Location	Hospitals in Common
Testing Frequency
Alternate Name(s)	Thiamine
Reference Interval

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