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Regional Medical Lab
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Index:

Creatinine

Order Name CREATININE
Test Number: 2025050
Revision Date 05/03/2021
Test Name Methodology LOINC Code
Creatinine
Kinetic Alkaline Picrate (Jaffe) 2160-0 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.5) Plasma Lithium Heparin PST (Light Green Top) Refrigerated
Alternate 1 1 mL (0.5) Serum Clot Activator SST Refrigerated
Instructions Specimen Stability: Ambient 7 days, Refrigerated 7 days, Frozen 3 months
GENERAL INFORMATION
Testing Schedule Daily 
Expected TAT 1-2 days  
Clinical Use Useful for sensitive and quantitative measurement of renal function. A Glomerular Filtration Rate (GFR) is also provided. 
Notes Reference range for GFR African American and non-African American
Normal GFR: <60 mL/Min.
Moderately decreased GFR: 30-59 mL/Min.
Severely decreased GFR: 15-29 mL/Min.
Kidney failure (or Dialysis): < 15 mL/Min.
CPT Code(s) 82565
Lab Section Chemistry