<prompt> Which is not elevated in a child presenting with icterus, Pruritus and clay coloured stoolsGamma glutamyl transpeptidaseAlkaline phosphatase5- nucleotidaseGlutamate dehydrogenase  <response>: The child is suffering from obstructive jaundice or Cholestasis Enzymes elevated in Chloestasis ALP 5-Nucleotidase Gamma glutamyl transpeptidase Ref: Harrisons 19th edition Pg no : 1997 