Glycohemoglobin A1C

Message

For Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.

Test Code

A1C

Alias/See Also

496;
A1C Hemoglobin;
GHgbA1C
Glycosylated Hemoglobin
A1C
GLUCATED HEMOGLOBIN
GLYCO
GLYCOHEMOGLOBIN
GLYCOHEMOGLOBIN, A1C
GLYCOSYLATED HB
GYCOSYLATED HGB
HA1C
HBA1C
HGA1C

CPT Codes
83036

Preferred Specimen

K2EDTA (lavender top) tube.

Minimum Volume

1.0 mL

Instructions

Gently invert 10 times. Draw separate tube if CBC is also ordered.

Transport Container

K2EDTA (lavender top) tube

Transport Temperature

Room Temperature or Refrigerated

Specimen Stability

Room Temperature = 3 days
Refrigerated = 7 days
Frozen = 6 months

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Hemolysis, Lipemia, incorrect specimen type, insufficient sample volume, improper storage conditions, exceeds specimen stability guidelines, contaminated sample.

Methodology
Immunoassay

Setup Schedule

24/7
AU

Report Available

Daily

Reference Range

The American Diabetic Association recommends the following Guidelines:

     5.7-6.4% Indicates increase risk for diabetes (Prediabetes).

    >6.5% Diagnostic of diabetes. In the absence of unequivocal hyperglycemia, Results should be confirmed by repeat testing.

     <7% Glycemic recommendation for nonpregnant adults with diabetes.

American Diabetes Association, Standards of Medical Care in Diabetes, Volume 40: 2017

Clinical Significance

Assesses long term diabetic control in diabetes mellitus.

Performing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, OH 45439

Last Updated: August 4, 2022

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.