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Biochemistry
An infant presented to the OPD with a history of vomiting and poor feeding. Musty odor is present in the baby's sweat and urine. Guthrie test was done and it was found to be positive. All are true regarding this disease except:
Phenylacetate positive in urine
Tandem mass spectrometry is the gold standard test
Phenylalanine hydroxylase enzyme defect
mental retardation is absent
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