Test Mnemonic
UOROTC
CPT Codes
Includes
Performing Laboratory
ARUP
Specimen Requirements
| Volume |
Type |
Container |
Collect Temperature |
Transport Temperature |
Special Instructions |
| 2 mL | Urine, first-catch | Clean container | | Frozen, Critical | CRITICAL FROZEN. Specimen must be stored refrigerated until frozen. Transfer 2 mL urine to a standard aliquot tube and freeze immediately. Separate specimens must be submitted when multiple tests are ordered. |
Alternate Specimen Requirements
| Volume |
Type |
Container |
Collect Temperature |
Transport Temperature |
Special Instructions |
| 2 mL | Urine, random | Clean container | | Frozen, Critical | CRITICAL FROZEN. Specimen must be stored refrigerated until frozen. Transfer 2 mL urine to a standard aliquot tube and freeze immediately. Separate specimens must be submitted when multiple tests are ordered. |
Minimum Specimen Requirements
| Volume |
Type |
Container |
Collect Temperature |
Transport Temperature |
Special Instructions |
| 1 mL | | | | | |
Stability
| Environmental Condition |
Description |
| Ambient | Unacceptable |
| Frozen | 2 weeks (Avoid repeated freeze/thaw cycles) |
| Refrigerated | 24 hours |
Days Performed
Thu
Turnaround Time
3 - 10 days
Methodology
| Name |
Description |
| Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) | |
Reference Range
| Orotic Acid |
| Sex |
Age From |
Age To |
Type |
Range |
Range Unit |
| | | | Freetext | 0 - 4 years: Less than or equal to 5.1 mmol/mol creatinine | |
| | | Freetext | 5 years and older: Less than or equal to 1.5 mmol/mol creatinine | |
Special Info
CRITICAL FROZEN. Urine specimens containing preservatives are unacceptable. Separate specimens must be submitted when multiple tests are ordered.
