Creatinine


Sunquest Code:CREA  
Epic Code:LAB66Epic Name:Creatinine
Synonyms:GFR
Methodology:Bichromatic endpoint calibrated to IDMS
St Johns/St Joseph/ Woodwinds: IDMS kinetic alkaline pictate
Turnaround Time:Performed and reported 24 hours/day.


Collection Instructions

Specimen:Blood
Optimal Volume:2.5 mL
Minimum\Peds Volume:0.6 mL
Container:Green (lithium heparin, gel), St Johns/St Joseph/Woodwinds-Green (lithium heparin, no gel) (Green (lithium heparin, no gel), Red (no gel), Red or gold (gel), St Johns/St Joseph/Woodwinds - Red (no gel))


Processing and Shipping

Specimen Processing:Centrifuge and aliquot 1.25 mL, 0.2 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:7 days at refrigerated temperature.
Test Performed at or Referral Lab Chemistry  (University of Minnesota Health Maple Grove Clinics, Range, UMMC-East Bank, Oxboro Bloom, Lakes, Ridges, Northland, Southdale, UMMC/UMMCH-West Bank, M Health Clinic and Surgery Center, M Health Clinic and Surgery Center, Grand Itasca, St. Joseph's, St. John's, Woodwinds)


Interpretive

Critical Range:Chemistry Reference Ranges and Critical Ranges  
Reference Range:Chemistry Reference Ranges and Critical Ranges
Glomerular Filtration Rate Reference Range: >60 mL/min/1.73m2
Use:Evaluate renal function.


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