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LABORATORY TEST DIRECTORY

Orotic Acid and Orotidine, Urine

CPT Code(s): 83921x2
Specimen Required: Patient Preparation:
Collect:First-morning urine is preferred.
Specimen Preparation:Urine must be refrigerated or frozen within 24 hours of collection Transport 2 mL urine. (Min: 1 mL) Freeze ASAP or within 2 hours of collection.
Storage/Transport Temperature:CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
Stability:Ambient: Unacceptable; Refrigerated: 24 hours; Frozen: 2 weeks (avoid repeated freeze/thaw cycles)
New York DOH Approval Status: This test is New York DOH approved.
Aliases:
  • Argininosuccinic aciduriaCit ICitrullinemia IHereditary orotic aciduriaHHHHyperornithinemia, hyperammonemia, LPILysinuric protein intoleranceOrnithine transcarbamylase deficiencyUMPSUridine monophosphate synthesis