Orotic Acid, Urine
Ordering Recommendation
New York DOH Approval Status
Specimen Required
First catch urine. Also acceptable: Random urine.
Specimen must be stored refrigerated until frozen. Transfer 2 mL urine to an ARUP standard transport tube and freeze immediately. (Min: 1 mL)
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
Urine specimens containing preservatives.
Ambient: Unacceptable; Refrigerated: 24 hours; Frozen: 30 days (avoid repeated freeze/thaw cycles)
Methodology
Liquid Chromatography-Tandem Mass Spectrometry
Performed
Mon
Reported
2-9 days
Reference Interval
| Age | Orotic Acid | 
| 0-4 years | Less than or equal to 5.1 mmol/mol creatinine | 
| 5 years and older | Less than or equal to 1.5 mmol/mol creatinine | 
Interpretive Data
Laboratory Developed Test (LDT)
Note
Hotline History
CPT Codes
83921
Components
| Component Test Code* | Component Chart Name | LOINC | 
|---|---|---|
| 0060096 | Orotic Acid, Urine - Interpretation | 48767-8 | 
| 0092457 | Orotic Acid | 17869-9 | 
| 3002339 | Creatinine, Urine | 2161-8 | 
Aliases
- Cit I
 - Lysinuric protein intolerance
 - Ornithine transcarbamylase deficiency
 - UMPS
 - Argininosuccinic aciduria
 - Citrullinemia I
 - Hereditary orotic aciduria
 - HHH
 - Hyperornithinemia, hyperammonemia, LPI
 - Uridine monophosphate synthesis
 
















