This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Liver), Subject name: Surgery
[{'content': "Which is not elevated in a child presenting with jaundice, icterus, pruritus & clay coloured stools. \nSelect and explain. \nA. Gamma glutanyl transpeptidase, B. Alkaline phosphatase, C. 5'-nucleotidase, D. Glutamate dehydrogenase", 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e. Glutamate dehydrogenase Jaundice, icterus, clay coloured stools, pruritus, all suggest cholestatic jaundiceThese three enzymes are usually elevated in cholestasis 1. Alkaline phosphatase 5'-nucleotidaseGamma glutamyl transpeptidase", 'role': 'assistant'}]