This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'FIGLU excretion test is used for assessment of deficiency of ? \nSelect and explain. \nA. Vitamin B12, B. Niacin, C. Folic acid, D. Pyridoxin', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Folic acidAssessment of folate deficiencyFollowing tests arc used for assessment of folate deficiency.i) Blood level :- Normal level in serum is about 2-20 nanogram/ml and about 200 micorgram/ml of packed cells.ii) Histidine load test or FIGLU excretion test :- Histidine is normally metabolized to formimino glutamic acid (FIGLU) from which formimino group is removed by THF. Therefore in folate deficiency, FIGLU excretion is increased in urine.", 'role': 'assistant'}]