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Orotic Acid, Urine

Alternate test name

Lab area
Clinical Biochemistry - Metabolic Diseases
Method and equipment
Liquid Chromatography with Tandem Mass Spectrometry (LC-MS/MS)
Expected turn-around time
30 days
Specimen type

Random Urine

Specimen requirements

500 µL of urine in sterile screw top container.

Storage and transportation
  • Store at -20°C and transport frozen on dry ice.
Shipping information
The Hospital for Sick Children
Rapid Response Laboratory
555 University Avenue, Room 3642
Toronto, ON
M5G 1X8
Phone: 416-813-7200
Toll Free: 1-855-381-3212
Hours: 7 days/week, 24 hours/day
Disease condition

Differentiation of various Urea Cycle Defects such as: OTC deficiency, NAGS deficiency, CPS deficiency, Citrullinemia, Argininosuccinate Lyase Deficiency. Pyrimidine biosynthesis defects.

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