Michael J. Palmieri Metabolic Disease Laboratory

Department of Pathology and Laboratory Medicine

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Orotic Acid

  • LIS Mnemonic: OROT

    Collect

    Random Urine Container

    Volume Required

    5-10 mL

    Minimum Required

    5.0 mL

    Transport

    Room temperature

    Stability

    8 hours @ room temperature

    Processing

    Refrigerate overnight/freeze if > 24 hours. If sending specimen from outside CHOP, send on dry ice by overnight courier (Mon-Thurs only).

Days Performed

Biweekly

Reported

2-4 weeks

Reflex Testing

N/A

CPT

83918

Methodology

Isotope Dilution by GC/MS

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Galactosemia Quantitation

Determination of galactose-1-phosphate uridyltransferase (Gal-1-PUT) activity by tandem mass spectrometry is now available at the Palmieri Metabolic Disease Laboratory.