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Glycohemoglobin
Test CodeGHGB
Alias/See Also
Hemoglobin A1C/ Glycated HgB/ HBA1C
CPT Codes
83036
Preferred Specimen
1.0 ml of whole blood.
Minimum Volume
0.5 mL of whole blood
Transport Container
EDTA (lavendar top)
Transport Temperature
Room Temperature
Specimen Stability
Room Temperature: 24 hours
Refrigerated: 14 days
Refrigerated: 14 days
Methodology
HPLC
Setup Schedule
Daily
Report Available
Specimens received by noon will be reported by 4:30. Specimens received after noon will be reported by the next morning.
Reference Range
NON DIABETIC: 4.0-6.0%
DIAGNOSTIC OF DIABETES: > or equal to 6.5%
CONTROLLED DIABETIC: <7.0
The reference range is standardized in accordance with the National Glycohemoglobin Standardization Program.
DIAGNOSTIC OF DIABETES: > or equal to 6.5%
CONTROLLED DIABETIC: <7.0
The reference range is standardized in accordance with the National Glycohemoglobin Standardization Program.
Clinical Significance
ADA Clinical Practice Recommendations state that HgbA1c > or = 6.5% can be used to diagnosis diabetes
