Pediatrics Hyperuricemia is caused in newborn due to defect in: A Adenosine deaminase B Ornithine transcarbamylase C Xanthine oxidase D Hypoxanthine guanine ribosyltransferase 💡 Explanation Hyperuricemia is caused in newborn due to defect in: ✓ Correct Answer: D. Hypoxanthine guanine ribosyltransferase