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HelpTest ID NBLD0415 Orotic Acid, Random, Urine
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
Specimen Type
UrineNecessary 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.
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Specimen Minimum Volume
3 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Frozen | 30 days |
Day(s) Performed
Tuesday, Thursday
Report Available
4 to 8 daysMethod Name
Colorimetric
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
83921
Reporting 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
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.Forms
1. Biochemical Genetics Patient Information (T602)
2. If not ordering electronically, complete, print, and send a Biochemical Genetics Test Request (T798) with the specimen.
Special Instructions
SANFORD LABORATORY INTERFACE BUILD INFORMATION
| Result Code | Result Code Description |
|---|---|
| 13082 | Orotic Acid, U |