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Test Code LAB90 HEMOGLOBIN A1C

Important Note

Test subject to Medicare National Coverage Determination (NCD) 190.21 - Glycated Hemoglobin/Glycated Protein.

This test subject to reflex testing see laboratory policy. If Hemoglobin A1C shows a suspicious Hgb not previously identified or if HBA2 is >3.4%, which is suspicious of beta-thalassemia, a Hemoglobin/Thalassemia Evaluation will be performed (cpt: 83020/85660/83021).  You have the option to decline reflex testing if you believe it is not medically necessary. If we are not able to assay using the UVM Medical Center Hemoglobin A1C test methodology due to the presence of an abnormal hemoglobin in the patient sample, the test will be credited with the following reason:  "A1c unreportable.  Abnormal hemoglobin present.  Measurement of serum fructosamine may be helpful to monitor glycemic control."

Additional Codes

Orderable Codes:

Epic Code Atlas Code Mayo Access ID Order LOINC
LAB90 HA1C FAH5419 55399-0

Result Component(s):

Reporting Name Epic Code Atlas Code Mayo Access ID Result LOINC
Hemoglobin A1c 12301000949 A1C FAH144 4548-4
eAG 12301000950 EAG FAH5420 27353-2

 

Specimen Information

Container Specimen Temperature Collect Vol Submit Vol Min Vol Stability
Lav Top Tube Whole Blood Refrigerate 2 mL 2 mL 0.5 mL 7 days
Lav Microtainer Whole Blood Refrigerate 0.5 mL 0.5 mL 0.5 mL 7 days

 

Test Schedule / Analytical Time / Test Priority

Monday – Friday / 3 days / Not available STAT

Method

Capillary Electrophoresis

Instrumentation

Sebia Capillarys Tera 3

Reference Range

The following A1c interpretive data reflect the 2017 American Diabetes Association (ADA) guidelines and will be reported with each A1c result:

Normal: <5.7%
Prediabetes: 5.7 - 6.4%
Diagnostic for diabetes (if confirmed): ≥6.5%

Goals for glycemic control in diabetes (ADA 2017)

<7% - The A1c target for nonpregnant adults with diabetes.

             More or less stringent targets may be appropriate for individual patients.
<7.5% - The A1c  target for children and adolescents with type 1 diabetes.

Section

Chemistry-2

Performing Location

University of Vermont Medical Center

Is the UVMMC lab NY State Certified to perform this testing?  Yes/No

Yes

CPT Code(s)

Description CPT Code
Hemoglobin A1C                                         83036