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HelpTest Code Creat Creatinine
Useful For
Assessing renal function
Patient Preparation
No special patient preparation required
Collection Method
Venous collection
Minimum Volume
- Adults: 0.8 mL
- Pediatric: 0.5mL
Container
Lt Green / Plasma Separator / Lithium Heparin
Preferred Specimen
Light Green Top (lithium heparin) plasma
Acceptable Specimens
Serum:
- Gold Top SST
- Red Top
Plasma:
- Light Geen Top (lithium heparin)
- Purple Top(K2 EDTA)
Reference or Target Ranges
| 0 – 2 months | 0.3 – 1.0 mg/dL |
| 2 months – 5 years | 0.2 – 0.4 mg/dL |
| 5 years – 11 years | 0.3 – 0.6 mg/dL |
| 11 years – 15 years | 0.4 – 0.8 mg/dL |
| Adult Female | 0.5 – 1.0 mg/dL |
| Adult Male | 0.7 – 1.2 mg/dL |
Reportable Units
mg/dL
Critical Value
Not defined for this assay
Reasons for Rejection
<!-- Rejection-->
| Hemolysis Threshold | 500 mg/dL |
| Icterus Threshold | 10 mg/dL |
| Lipemia Threshold | 500 mg/dL |
| Other | QNS, contaminated, improperly Labeled, improper specimen type |
Specimen Stability
<!-- Stability -->
| Ambient | 7 days |
| Refrigerated (4°C to 8°C) | 7 days |
| Frozen(-40°C to 0°C) | 3 months |
Performance Information
<!-- Performance information -->
| Days and Time Performed | 24/7 |
| Expected Turn Around Time |
Stat: 1 hour Routine: 4 hours |
| Stat Availability | Yes |
| Performing Bench | UH Chemistry |
| Methodology/Method Description | Siemens Atellica – Enzymatic |
Additional Information/Important Notes
Estimated Glomerular Filtration Rate (eGFR) is calculated by the lab computer system and reported with all serum/plasma creatinine results on patients.
CPT Codes
82565