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HelpTest Code CRET Creatinine
Additional Codes
| EPIC | LAB4319 |
Clinical Significance
Creatinine measurements are used in the diagnosis and treatment of renal diseases, in monitoring renal dialysis, and as a calculation basis for measuring other urine analytes.
Source: Beckman Coulter, CR-S IFU. REF #A40920 12/14/16
Methodology
Modified rate Jaffe method (Beckman Coulter UniCel DxC 660i)
Sample Type
| Preferred Sample Type | |
|---|---|
| Light green top - Plasma | |
| Acceptable Sample Type(s) | |
|---|---|
| Dark green top - Plasma | |
| Yellow top - Serum | |
| Red top - Serum | |
Centrifuge: Yes
Specimen Minimum Volume
0.3 mL
Specimen Stability
| Temperature | Time |
|---|---|
| Ambient (18-25°C) | 8 hours |
| Refrigerated (2-8°C) (store) | 48 hours |
| Frozen (-15 to -20°C) | 1 month |
Separate plasma or serum from cells within 2 hours.
Reference Ranges
| Normal Range | ||
|---|---|---|
| Test | Age/Sex | Values |
| Creatinine | Male | 0.70 - 1.30 mg/dL |
| Female | 0.50 - 1.10 mg/dL | |
| GFR | >18 years | >60 mL/min/1.73 m2 |
| Technical Range (Creatinine) | |
|---|---|
| 0.3 - 25.0 mg/dL |
NOTE: GFR is calculated using the Modification of Diet in Renal Disease (MDRD) equation.
Rejection Criteria
| Hemolysis | N/A |
|---|---|
| Icterus | See below* |
| Lipemia | N/A |
*Bilirubin of >22.5 mg/dL can cause falsely decreased results.
Cefoxitin >25.0 mg/dL can cause falsely elevated results.
Availability
| Performed | STAT |
|---|---|
| 24/7 | Yes |
Performing Laboratory
MultiCare Yakima Memorial Hospital Laboratory
Lab Department
Chemistry
CPT Code
82565
LOINC
2160-0 Creatinine [Mass/Vol]