Reference Interval:
70-180 nmol/L
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| Interpretive Data: |
The concentration of thiamine diphosphate (TDP), the primary active form of vitamin B1, is measured in this assay. Approximately 90% of vitamin B1 present in whole blood is TDP. Thiamine and thiamine monophosphate, which comprise the remaining 10%, are not measured.
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| Note: |
Whole blood is the preferred specimen for thiamine assessment. Approximately 80% of thiamine present in whole blood is found in red blood cells.
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| CPT Code(s): |
84425
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Cross References: |
B1 Vitamin, Whole Blood, Thiamine, Whole Blood |