Creatinine


Sunquest Code:CREA  
Epic Code:LAB66Epic Name:Creatinine
Synonyms:GFR
Methodology:Bichromatic end point calibrated to IDMS
CPT Code:82565
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) (Green (lithium heparin) on ICE, Green (sodium heparin, no gel), Green (sodium heparin, no gel) on ICE, Red (no gel), Red or gold (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.
Test Performed at or Referral Lab Chemistry  (University of Minnesota Health Maple Grove Clinics, Fairview Range - FRMC, UMMC-East Bank, Oxboro Bloom, Fairview Lakes - FLMC, Fairview Ridges - FRH, Fairview Northland - FNMC, Fairview Southdale - FSH, UMMC/UMMCH-West Bank, M Health Clinic and Surgery Center, Grand Itasca GICH)


Interpretive

Critical Range:GICH only:
0-18 mo >1.5
19 mo - 10 y >2.0
11 - 15 y >3.0
16 y and older >7.0
 
Reference Range:
IDMS Traceable Ref Range  
Age Female/Male
mg/dL
0-21 d 0.33-1.01
22 d - 8 y 0.15-0.53
9 - 14 y 0.39-0.73
15 - 19 year 0.50-1.00

 
20 y and older, F 0.52-1.04
20 y and older, M 0.66-1.25
Varies with the amount of muscle mass present.
GICH: Male: 0.7-1.3 mg/dL; Female: 0.6-1.2 mg/dL
Use:Evaluate renal function.


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