Test directory: Hemoglobin A1c

Ordering Code4779
Test NameHemoglobin A1c
AliasHgb A1c
Preferred SpecimenWhole Blood
Preferred ContainerEDTA, K2 (Lavender)
Other Specimen/ContainerWhole Blood in Lithium Heparin (Green)
Optimum Volume2 mL
Handling InstructionsRefrigerate specimen if transport time >3 days.
Transport RequirementsOahu: Ambient
Airline: Refrigerated
Specimen StabilityAmbient: 3 Days
Refrigerated: 7 Days
Frozen: 6 Months
Frozen samples should be thawed only once.
Rejection CriteriaSpecimen older than stability limits
Avail. StatNO
Analytic Time1 Day

Reference range(s)

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Hemoglobin A1cALL<5.7<5.7%
Estimated Average GlucoseALLmg/dl


Interpretation (Standards of Medical Care in Diabetes - 2019)
    <5.7%      Normal
 5.7-6.4%      Pre-Diabetes
   >=6.5%      Diabetes

See report.