In a child presenting with obstructive Jaundice all are elevated EXCEPT:: (A) Gamma glutamyl transpeptidase, (B) Alkaline phosphatase, (C) Glutamate dehydrogenase, (D) 5' Nucleotidase
Answer is C. Elevations in serum Alkaline phosphatase, 5' nucleotidase, and g-glutamyl transpeptidase levels are sensitive indicators of obstruction or inflammation of the biliary tract.