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HelpTest Code CRT2F Creatinine, 24 Hour, Urine
Specimen Required
Only orderable as part of a profile. For more information see:
-TLTE4 / Leukotriene E4, 24 Hour, Urine
-MCM24 / Mast Cell Mediators, 24 Hour, Urine
Useful For
Normalizing urinary analytes to account for the variation in urinary concentration
Reporting Name
Creatinine, 24 HR, USpecimen Type
UrineSpecimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Frozen (preferred) | 30 days |
| Refrigerated | 30 days | |
| Ambient | 14 days |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Reference Values
Only orderable as part of a profile. For more information see:
-TLTE4 / Leukotriene E4, 24 Hour, Urine
-MCM24 / Mast Cell Mediators, 24 Hour, Urine
Normal values mg per 24 hours:
Males: 930-2955 mg/24 hours
Females: 603-1783 mg/24 hours
Reference values have not been established for patients who are younger than 18 years.
Day(s) Performed
Monday through Sunday
Report Available
1 daySpecimen Retention Time
7 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| CRT2F | Creatinine, 24 HR, U | 65634-8 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| CR_AF | Creatinine, 24 HR, U | 2162-6 |
| TM10F | Collection Duration (h) | 13362-9 |
| VL8F | Urine Volume (mL) | 3167-4 |
| CRF24 | Creatinine Concentration, 24 HR, U | 20624-3 |