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Test Code Billings Clinic: 4001 Glucose, Plasma or Serum

Performing Laboratory

Billings Clinic Laboratory: Chemistry

Useful For

Diagnosing and managing diabetes mellitus and other carbohydrate metabolism disorders including gestational diabetes, neonatal hypoglycemia, idiopathic hypoglycemia, and pancreatic islet cell carcinoma

Methodology

Hexokinase

Specimen Requirements

Submit only 1 of the following specimens:

Serum or plasma should be physically separated from cells as soon as possible with a maximum limit of two hours from the time of collection.

 

Plasma

  • Draw blood in a green-top (lithium heparin) tube(s).
  • Spin down and send 0.5 mL of heparinized plasma refrigerated.

 

Serum

  • Draw blood in a plain, red-top tube(s) or a serum gel tube(s).
  • Spin down and send 0.5 mL of serum refrigerated.

 

DO NOT FREEZE

Storage/Stability

Specimen Type Temperature Time
Plasma, Serum Refrigerated 3 days
  Ambient 8 hours

 

Reject Due To

  • Specimens received frozen
  • Gross hemolysis

Reference Values

Normal values
0 - 1 day                   40 - 60   mg/dL

1 day - 1 month        50 - 90   mg/dL

1 month - 11 years   60 - 100 mg/dL

11 - 16 years            70 - 105 mg/dL

16 - 18 years            65 - 105 mg/dL
> 18 years:               74 - 106 mg/dL
 

Call-back values
0 - 1 day                  <30 mg/dL or >150 mg/dL
1 day - 1 month       <40 mg/dL or >150 mg/dL

1 month - 16 years  <40 mg/dL or >350 mg/dL

> 16 years               <50 mg/dL or >500 mg/dL

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

82947 - Glucose; quantitative, blooe (except reagent strip)


LCD or NCD test: ICD-10 code is required for this test. When appropriate, obtain a properly executed ABN and submit the ABN with test order(s). See “Medical Necessity and Advanced Beneficiary Notice (ABN) Policy and Form” under "Resources" for a copy of a form and additional information.

LOINC Code Information

Reporting Name LOINC Code
Glucose 2345-7