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Test Code GF Glucose, Fasting, Plasma or Serum

Methodology

Glucose Oxidase

Performing Laboratory

Munson Healthcare Laboratories

Specimen Requirements

Specimen must arrive within 72 hours of draw.

 

Submit only 1 of the following specimens:

 

Plasma

Container/Tube: Green-top (heparin) gel tube or grey-top (potassium oxalate/sodium fluoride) tube

Specimen Volume: 0.5 mL of heparinized plasma or potassium oxalate/sodium fluoride plasma
Transport Temperature: Refrigerate
Collection Instructions: Fasting (8 hour). Centrifuge tube within 1 hour of draw. For grey-top (potassium oxalate/sodium fluoride) tube(s), do not centrifuge. Forward promptly.

Note: 1. Medicare frequency limitations exist for this test in addition to diagnosis requirements. Click on link for list of medically necessary diagnoses: http://www.munsonhealthcare.org/medical-necessity.  See Advance Beneficiary Notice of Noncoverage (ABN) form in Special Instructions.

2. Indicate plasma.

3. Label specimen appropriately (plasma).


Serum
Container/Tube: Gold-top serum gel tube

Specimen Volume: 0.5 mL of serum
Transport Temperature: Refrigerate
Collection Instructions: Fasting (8 hour). Centrifuge tube within 1 hour of draw. Forward promptly.

Note: 1. Medicare frequency limitations exist for this test in addition to diagnosis requirements.  Click on link for list of medically necessary diagnoses: http://www.munsonhealthcare.org/medical-necessity. See Advance Beneficiary Notice of Noncoverage (ABN) form in Special Instructions.

2. Indicate serum.

3. Label specimen appropriately (serum).

Reference Values

For fasting specimens: 70-99 mg/dL
Values of 100-125 mg/dL are considered impaired/prediabetes according to ADA guidelines.

Critical values (automatic call-back):

      Pediatric patients up to 21 years old:    ≤ 35 mg/dL, ≥ 200 mg/dL 

      Patients 21 years and older  ≤ 50mg/dL, ≥500 mg/dL

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

82947

Special Instructions