Hemoglobin A1c

2001

cpt

normal turn-around time

assays included

specimen type

minimum required

A1c

83036

24 hours

HgbA1c

Whole Blood, Fingerstick

1 mL of whole blood

collection instructions

Venous Whole Blood

Collect blood in an EDTA (lavender-top) tube.
Mix the blood gently by inversion to ensure proper mixing with the anticoagulant.
Label the tube with at least two patient identifiers.
Transport the specimen at room temperature.

Capillary Fingerstick

Cleanse the finger with an alcohol swab and allow it to dry completely.
Use a lancet to puncture the skin and collect a small drop of blood into a capillary tube or onto a test strip.
Follow manufacturer instructions for the specific point-of- care device used.

collection instructions

Hemolysis: Red blood cell destruction can affect test results.
Improper Labeling: Specimen must be labeled with at least two patient identifiers.
Clotted Specimen: Ensure the blood does not clot before testing.
Insufficient Quantity: Not enough blood collected for testing.

clinical significance

The Hemoglobin A1c (HbA1c) test measures the average blood glucose level over the past 2-3 months. It is used to assess long-term glycemic control in patients with diabetes mellitus. Higher HbA1c levels indicate poorer blood glucose control, which may increase the risk of diabetes-related complications such as cardiovascular disease, neuropathy, and nephropathy. This test is essential for monitoring diabetes management and adjusting treatment plans.