Test Mnemonic
UCRT24
CPT Codes
Includes
- Urine Creatinine
- Urine Creatine
Performing Laboratory
ARUP
Specimen Requirements
| Volume |
Type |
Container |
Collect Temperature |
Transport Temperature |
Special Instructions |
| 2 mL | Urine, random | Sterile container | | Frozen | Freeze immediately |
Alternate Specimen Requirements
| Volume |
Type |
Container |
Collect Temperature |
Transport Temperature |
Special Instructions |
| 2 mL | Urine, 24-hour (well-mixed) | Sterile container | Refrigerate during collection. | Frozen | Mix well and transfer 2 mL urine into standard aliquot tube. Freeze immediately. |
Minimum Specimen Requirements
| Volume |
Type |
Container |
Collect Temperature |
Transport Temperature |
Special Instructions |
| 0.5 mL | | | | | |
Stability
| Environmental Condition |
Description |
| Ambient | Unacceptable |
| Refrigerated | Unacceptable |
| Frozen | 2 weeks |
Days Performed
Mon
Turnaround Time
3 - 10 days
Methodology
| Name |
Description |
| Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) | |
Reference Range
| Urine Creatine |
| Sex |
Age From |
Age To |
Type |
Range |
Range Unit |
| | | | | Refer to report | |
Special Info
Indicate total volume on requisition. For random or timed specimens other than 24 hours, the result represents the total milligrams of creatine excreted during the collection period. Reference ranges for creatine have been established for random urine collections, in mmol/mol creatinine. Specimens exposed to more than one freeze/thaw cycle are unacceptable. This test is New York DOH approved.
