Creatinine Clearance, Urine Timed
Test Mnemonic
UXCCT
CPT Codes
- 82575 - QTY (1)
Includes
- Creatinine Urine
- Creatinine serum
- Creatinine Clearance
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 5 mL | Urine, timed (well-mixed) | Clean container | Refrigerate during collection. | Refrigerated | |
| 1 mL | Serum | SST (Gold) | Refrigerated | Collect blood near the end of timed urine collection. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Plasma | Sodium or Lithium heparin (Green) |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.3 mL | Plasma | ||||
| 0.3 mL | Serum | ||||
| 3 mL | Urine |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 2 days |
| Refrigerated | 6 days |
| Frozen | 6 months |
Days Performed
Mon - Fri
Turnaround Time
8 hours
Methodology
| Name | Description |
|---|---|
| Enzymatic |
Special Info
Creatinine clearance will not be calculated if no serum specimen is submitted. Indicate patient height, weight, urine volume and hours of collection.
Clinical Info
Evaluation of renal function