system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Figlu is a metabolite of:
assistant
The correct answer is  Ans. B. HistidineFIGLU stands for N- formimino glutamate and is formed during catabolism of Histidine. In the reaction there is transfer of formimino group of FIGLU to tetra hydro folate to form glutamate. In folic acid deficiency this reaction is blocked and FIGLU is excreted in urine. So excretion of FIGLU following a test dose of histidine provides a diagnostic test for folic acid deficiency.