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