Test Overview
Test Methodology

DCA Vantage- spectrophotometry

Test Usage

Hemoglobin A1c is proportional to the level of glucose in the blood over 2 to 3 monthe. Regular measurement of HbA1C can be used in the long-term clinical monitoringn of diabetic patients. Improvement of metabolic control is indicated by a lowering of HbA1C values.

Point of Care DCA Hemoglobin A1C testing is available in certain ambulatory health centers and clinics and is performed by authorized operators in those areas.

Reference Range *

Reference ranges are available in the DCA Vantage - Hemoglobin A1C test procedure located on the POC website: https://www.pathology.med.umich.edu/point-of-care

Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

The DCA Vantage will measure values between 2.5%-14%. Report out of range patient results as less than (<) 2.5% or greater than (>) 14.0%.
Specimens with hemoglobin values less than 7 g/dL should be tested with a different method.

Test Details
Analytic Time

6 minutes

Soft Order Code
MiChart Code
A1C, Point of Care
Point of Care
Point of Care
Specimen Requirements
Collection Instructions

Fingerstick: wipe away the first drop and use second drop for testing. Avoid excessive squeezing or milking.

Venous: collect in lithium, sodium, or EDTA syringe/tube

Special Handling

Sample must be tested within 5 minutes after collection in glass capillary.

Very high levels of Hgb F, severe anemia, polycythemia, and homozygous HbS and HbC can cause HbA1C results to be lower than expected.
Reject any sample that has remained in the glass capillary for longer than five minutes prior to analysis.
Normal Volume
Minimum Volume
1 µL Whole Blood
Additional Information

For more test specific information, please refer to the test procedure found on the Michigan Medicine POC website: https://www.pathology.med.umich.edu/point-of-care

CPT Code
A1C (4548-4)
NY State Approved