Total thiamine, measured as thiamine (vitamin B1) and thiamine monophosphate, is reported. However, thiamine diphosphate (TDP), the biologically active form of the vitamin, is best measured in whole blood and is not found in measurable concentration in plasma. Plasma thiamine concentration reflects recent intake rather than body stores.
Compliance Statement B
: This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.