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HelpTest Code OROT Orotic Acid, Random, Urine
Necessary Information
1. Patient's age is required.
2. Provide a reason for testing.
Specimen Required
Supplies: Urine Tubes, 10 mL (T068)
Container/Tube: Plastic, 10-mL urine tube
Specimen Volume: 10 mL
Collection Instructions:
1. Collect a random or timed urine specimen.
2. No preservative needed.
Children's Mercy Hospital
Note:
CMH COLLECTION: 10 mL in sterile cup
Specimen Minimum Volume
3 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Frozen | 30 days |
Useful For
Evaluation of the differential diagnosis of hyperammonemia and hereditary orotic aciduria
Sensitive indicator of ornithine transcarbamylase (OTC) activity after administration of allopurinol or a protein load to identify OTC carriers
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Day(s) Performed
Tuesday, Thursday
Report Available
4 to 8 daysReporting Name
Orotic Acid, UReference Values
<2 weeks: 1.4-5.3 mmol/mol creatinine
2 weeks-1 year: 1.0-3.2 mmol/mol creatinine
2-10 years: 0.5-3.3 mmol/mol creatinine
≥11 years: 0.4-1.2 mmol/mol creatinine
Method Name
Colorimetric
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
83921