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Test Code CREAT CREATININE

Additional Codes

LAB66

Performing Laboratory

Porter Hospital Laboratory

Specimen Requirements

Specimen Type: Blood
Container/Tube: Tiger top, serum gel
Also Acceptable: Green top (Lithium Heparin)
Specimen Volume: Full tube, submit 0.5 mL serum
Specimen Minimum Volume: 0.3 mL
Collection Instructions:
  1. Send specimen in original tube.
  2. If there is a delay in transport of >1 hour, centrifuge tube.
  3. Centrifuged samples are stable for:
        • 8 hours at room temperature
        • 2 days at 2-8 °C
        • For longer storage, freeze at –20 °C or colder

Specimen Transport Temperature

Refrigerated

Test Schedule / Analytical Time / Test Priority / Turn Around Time

Daily / 24 hours / Available STAT / Routine - 4 hours

                                                            STAT - 60 minutes

Test Classification and CPT Coding

82565

Reference Values

>16 years, female: 0.55-1.02 mg/dl; male: 0.70-1.30

 

Critical Values

>4.0 mg/dL If testing repeated and Creatinine level is improving, call may be defered for 8 hours.