Glucose, Whole Blood


Sunquest Code:GLUW  
Epic Code:LAB3507Epic Name:Glucose Whole Blood
Methodology:Amperometric electrode
Turnaround Time:Performed and reported 24 hours/day.
Special Instructions:Glucose will decrease 5-10 mg/dL/hour in an unprocessed tube as a result of glycolysis.


Collection Instructions

Specimen:Blood
Optimal Volume:1 mL
Minimum\Peds Volume:0.2 mL (tuberculin syringe)
Container:Dry heparin syringe (Capillary (lithium heparin) gas tube, Green (lithium heparin, gel), Green (lithium heparin) on ICE, Green (sodium heparin, no gel))
Collection Instructions:Must be delivered to the laboratory within 2 hours of collection. Plasma samples are acceptable if processed within 2 hours of collection.


Processing and Shipping

Specimen Processing:Whole blood. Do not process. Do not store.
Test Performed at or Referral Lab Chemistry  (UMMC-East Bank, UMMC/UMMCH-West Bank, UMMC NICU)


Interpretive

Critical Range:
Age  
0 - 71 h Less than 40 or greater than 200 mg/dL
3 d - 5 mo Less than 51 or greater than 200 mg/dL
6 mo and older Less than 51 or greater than 500 mg/dL
   
Reference Range:
Fasting glucose is defined as no caloric intake for 8 hours. Casual glucose is defined as any time of day without regard to time since last meal.  Casual glucose range is dependent upon food intake, intravenous fluids and parenteral nutrition.
Age Fasting Casual
0-47 h 40-99 mg/dL 50-139 mg/dL
48 h - 5 mo 51-99 mg/dL 51-139 mg/dL
6 mo & older 70-99 mg/dL 70-139 mg/dL
A fasting glucose greater than 126 mg/dL or a casual plasma glucose greater than 200 mg/dL, if confirmed on a subsequent day, meets the threshold for the diagnosis of diabetes, and precludes the need for a glucose challenge.


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