MICHIGAN INNOVATIVE DIAGNOSTICS

The Hemoglobin A1c test measures the percentage of glycated hemoglobin in the blood, reflecting average blood glucose levels over the past two to three months. It's a key tool for diagnosing diabetes and prediabetes and for monitoring long-term blood sugar control.

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LIS TEST CODE: HGBA1C​

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CPT CODE: 83036

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ALIASES: HBA1C, Glycosylated Hemoglobin, Hemoglobin A1C, HGBA1C, A1C

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METHODOLOGIES: High-Performance Liquid Chromatography (HPLC)

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SPECIMEN:

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- Type: Whole Blood

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- Container: Lavender Top (K2/K3 EDTA) Vacutainer

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- Minimum Volume Required: 0.5 mL

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- Storage/Handling: Gently invert specimen 8 - 10 times immediately following blood collection to prevent clotting. Maintain specimen at room temperature or in the refrigerator until testing can be performed.

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- Stability:   

 

Room Temperature (20-25 °C): 1 day

Refrigerated (2-8 °C): 7 days 

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- Turnaround Time: 24 hours from receipt.

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Special Instructions: N/A

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REJECTION REASONS: Clotted Specimen, QNS, Gross Hemolysis, Gross Lipemia, Contamination, Stability Violation, Expired Container, Incorrect Container

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REFERENCE RANGES:​

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Males & Females (%)

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>= 1 year of age: < 5.7

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Prediabetes: 5.7 - 6.4 %
Diabetes: >= 6.5 %
Glycemic Control for Adults with Diabetes: < 7.0 %

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Panic Threshold(s): >= 13.0 % for Males & Females >= 1 years of age.

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