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HelpTest Code CRGFB Creatinine, Plasma or Serum
Additional Codes
LAB30113
Methodology
Used to monitor renal function.
Performing Laboratory
St. Mary's Regional Medical Center-Chemistry
CPT: 82565
Specimen Requirements
Submit only 1 of the following specimens:
Plasma
Container/Tube: Light green-top (lithium heparin) tube
Specimen: 1 mL of lithium heparin plasma
Transport Temperature: Ambient
Collection Instructions:
Note: 1. Indicate plasma.
2. Label specimen appropriately (plasma).
Serum
Container/Tube: Plain, red-top tube or gold serum gel tube
Specimen: 1 mL of serum
Transport Temperature: Ambient
Collection Instructions:
Note: 1. Indicate serum.
2. Label specimen appropriately (serum).
Reference Values
CREATININE (Creatinine method is standardized to IDMS).
Males
0-1 week: 0.7-1.2 mg/dL
1 week-1 month: 0.3-0.8 mg/dL
1 month-1 year: 0.2-0.5 mg/dL
1-3 years: 0.2-0.8 mg/dL
4-13 years: 0.5-1.1 mg/dL
>13 years: 0.70-1.30 mg/dL
Females
0-1 week: 0.7-1.2 mg/dL
1 week-1 month: 0.3-0.8 mg/dL
1 month-1 year: 0.2-0.5 mg/dL
1-3 years: 0.2-0.8 mg/dL
4-13 years: 0.5-1.1 mg/dL
>13 years: 0.55-1.10 mg/dL
GLOMERULAR FILTRATION RATE (GFR):
>18 years: >60
Calculated using CK-EPI standards
Day(s) Test Set Up
Monday through Sunday
Available STAT