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VITB / 121186L
VITAMIN B1 (THIAMIN), WHOLE BLOOD

Test Code VITB / 121186L 
Test VITAMIN B1 (THIAMIN), WHOLE BLOOD 
Methodology Liquid chromatography/tandem mass spectrometry (LC/MS-MS) 
Description The classic vitamin B1 deficiency disease is beriberi, the primary symptoms of which are neurological and cardiovascular disturbances, such as myocardial damage, cardiac failure, and neuritis and neural paralyses accompanied by metabolic dysfunction in the form of lactate acidosis and branched-chain ketoaciduria. Further thiamine deficiency diseases are Wernicke's encephalopathy, Korsakov's syndrome, and several forms of Landry's paralysis. 
Specimen Patient Preparation: Blood samples should be collected before breakfast in the morning and prior to any medication.

Draw blood in a lavender-top (EDTA) tube. DO NOT CENTRIFUGE. Send 1.0 mL (minimum 0.5 mL) whole blood FROZEN in original lavender-top tube.
Protect from light - Cover standard transport tube completely, top and bottom, with aluminum foil. Identify specimen with patient name directly on the container and on the outside of the aluminum foil. Secure with tape.

NOTE: If the lavender tube is glass, please transfer the whole blood into a plastic transfer tube (GLASS TUBE IS NOT ACCEPTABLE). 

Reference Values 66.5-200.0 nmol/L 
Analytic Time 3 Days 
Day(s) Test Set Up Mondays 
CPT Code(s) 84425