Test to diagnose thiamine deficiency ?: (A) RBC transketolase, (B) FIGLU excretion, (C) Methyl-malunic acid in urine, (D) Histidine load test
Answer is A. Ans. is 'a' i.e., RBC transketolase Thiamine diphosphate is also the coenzume for transketolase, in the pentose phosphate pathway.Therefore, thiamine nutritional status is best assessed by erythrocyte (preferred) or whole blood transketolase activity..