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Hemoglobin A1C
Test CodeHA1C1, HA1C
Alias/See Also
Glycosolated Hemoglobin, A1C, Glycohemoglobin, HA1C, HA1C1, EPG: Estimated Plasma Glucose, MPG: Mean Plasma Glucose
CPT Codes
83036
Includes
Hemoglobin A1C
MPG:Mean Plasma Glucose
MPG:Mean Plasma Glucose
Preferred Specimen
EDTA PURPLE (LAV)
K2-EDTA or K3-EDTA
K2-EDTA or K3-EDTA
Patient Preparation
Avoid collecting samples from patients who have recently been transfused.
Other Acceptable Specimens
4ml GREEN Whole Blood (NA Heparin, Lithium Heparin)
Instructions
No hemolysis.
Specimen Stability
Sample Stability:
- Ambient/Room Temperature: One day (less than 24 hours) at room temperature (15 - 35°C)
- Refrigerator Temperature: Up to seven (7) days when stored at 2-8°C.
- Freezer Temperature: Seven (7) days when stored frozen at -20°C. Whole blood samples are stable for six (6) months at -70°C.
Methodology
BioRad D-100 HPLC
Setup Schedule
24x7
Report Available
24x7
Limitations
Specimens with Hemoglobin Variations may be reflexed to FRUCTOSAMINE to obtain applicable result.
Range: 3.5%-20.0%
Range: 3.5%-20.0%
Reference Range
A1C: 4.8-5.6%
MPG: 70-99 mg/dL (Calculation: (28.7*HA1C)-46.7
Aerican Diabetes Association (ADA) interpretation reommendations:
<5.7 Non-Diabetic
5.7 - 6.4% Pre-Diabetic range
>6.5 Diabetic diagnosis
Glycemic control guidelines for people with diabetes:
Goal: <7.0 %
Additional action suggested: >8.0 %
MPG: 70-99 mg/dL (Calculation: (28.7*HA1C)-46.7
Aerican Diabetes Association (ADA) interpretation reommendations:
<5.7 Non-Diabetic
5.7 - 6.4% Pre-Diabetic range
>6.5 Diabetic diagnosis
Glycemic control guidelines for people with diabetes:
Goal: <7.0 %
Additional action suggested: >8.0 %
Clinical Significance
The A1c test is used to monitor the glucose control of diabetics over time. The goal of those with diabetes is to keep their blood glucose levels as close to normal as possible. This helps to minimize the complications caused by chronically elevated glucose levels, such as progressive damage to body organs like the kidneys, eyes, cardiovascular system, and nerves. The A1c test result gives a picture of the average amount of glucose in the blood over the last few months. This can help the diabetic person and his doctor know if the measures that are being taken to control his diabetes are successful or need to be adjusted.
A1c is frequently used to help newly diagnosed diabetics determine how elevated their uncontrolled blood glucose levels have been over the last 2-3 months. The test may be ordered several times while control is being achieved, and then several times a year to verify that good control is being maintained.
A1c is frequently used to help newly diagnosed diabetics determine how elevated their uncontrolled blood glucose levels have been over the last 2-3 months. The test may be ordered several times while control is being achieved, and then several times a year to verify that good control is being maintained.
Performing Laboratory
CRMC Laboratory
