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HelpTest Code CREAT Creatinine
Performing Laboratory
Hunterdon Medical Center Laboratory
Useful For
Serum Creatinine is waste from protein and muscle breakdown. The results help to assess kidney function.
Glomerular filtration rate (GFR) is the best overall index of kidney function. HMC Laboratory performs a GFR (eGFR) calculation on each Creatinine ordered. This includes: Comprehensive Metabolic Panel (CMP), Basic Metabolic Panel (BMP), Renal Function Panel (RENAL) and individual Serum Creatinine orders.
The Estimated GFR is calculated using the 2021 CKD-EPI creatinine calculation supplied by the National Kindey Foundation. Components included: Serum Creatinine assay, age and gender.
Specimen Required
| Container/Tube | |
| Acceptable | PST (Li Hep) Gel- Mint Green Top |
| Acceptable | SST |
| Specimen Volume | 3.0 mL |
| Minimum Volume | 1.0 mL |
Specimen Type
Plasma/Serum
Specimen Transport Temperature
Ambient
Specimen Stability
| Specimen | Temperature | Time Frame |
| Plasma | Refrigerated 2-8°C | 7 days |
| Serum-gel tube | Refrigerated 2-8°C | 7 days |
Updated June 2020
Day(s) Test Set up
Monday through Sunday
Available STAT
Reference Values
Creatinine
| Age | Female | Male | Units |
| 0-2 days | 0.24-0.85 | 0.24-0.85 | mg/dL |
| >2 days-1 year | 0.21-0.42 | 0.21-0.42 | mg/dL |
| >1 year-3 years | 0.24-0.85 | 0.24-0.85 | mg/dL |
| >3 years-11 years | 0.24-0.73 | 0.31-0.73 | mg/dL |
| >11 years-15 years | 0.53-0.87 | 0.53-0.87 | mg/dL |
| >15 years | 0.60-1.10 | 0.70-1.30 | mg/dL |
Estimated Glomerular Filtration Rate: 60-90mL/min/1.73_m2
Methodology
Kinetic colorimetric assay
CPT Code
82565
Loinc Code
14682-9