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Test Code HA1C HEMOGLOBIN A1c with eAG

Important Note

Test subject to Medicare National Coverage Determination (NCD).

See Medical Necessity documentation requirements by clicking on  

Medicare National Coverage Determinations under General Information

to left of this screen.

Additional Codes

LAB90

Performing Laboratory

Porter Hospital Laboratory

Specimen Requirements

Specimen Type: Blood
Container/Tube: Lavender top, EDTA whole blood
Specimen Volume: Full tube, submit 2.5 mL serum
Specimen Minimum Volume: 1.0 mL
Collection Instructions:
1. Send specimen in original tube.
2. Samples are stable for:
   • 3 days at room temperature
   • 7 days at 2-8 °C

Specimen Transport Temperature

Refrigerated

Test Classification and CPT Coding

83036

Test Schedule / Analytical Time / Test Priority / Turn Around Time

Monday - Friday / Not Available STAT or Weekends / Same Day 

Samples collected on weekends will be run on Monday

Normal Reference Values

INTERPRETIVE DATA (ADA Guidelines)
<5.7% Normal
5.7-6.4% Increased risk for diabetes
=>6.5% Diagnostic for diabetes (if confirmed)
The A1c goal for nonpregnant adults in general is <7%.
The A1c goal for selected patients may be significantly lower than 7% if this can be achieved without significant
hypoglycemia or other adverse effects of treatment.

Critical Values

None