ARUP's Laboratory Test Directory
| 0020025: Creatinine, Serum or Plasma |
| Test Mnemonic: CRT | |
|
Methodology: Spectrophotometry
Performed: Sun-Sat Reported: Within 24 hours |
| Specimen Required: | |
|
Collect: One 4 mL PST or SST.
Transport: 1 mL plasma or serum at 2-8°C. (Min: 0.2 mL) Submit specimen in an ARUP Standard Transport Tube. Pediatric Collection/Transport: 0.2 mL plasma or serum at 2-8°C. Remarks: Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP. Unacceptable Conditions: Specimens obtained through catheters used to infuse hyperalimentation fluid. Specimens with potassium oxalate/sodium fluoride, citrate, or EDTA anticoagulants. Stability: After separation from cells: Ambient: 4 hours; Refrigerated: 1 week; Frozen: 6 months |
|
| Reference Interval: |
| By report (reports may vary based on instrumentation) |
| CPT Code(s): | |
| 82565 |