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HelpTest Name GF Glucose, Fasting
Additional Codes
Atlas
| Test Code | Test Name |
| GLUF | Glucose, Fasting |
Performing Laboratory
Munson Healthcare Laboratories
Methodology
Glucose Oxidase
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