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Test Name

GlycoMark®

CPT Code(s)

84378

Methodology

Colorimetric (C) • Enzymatic

Reference Range(s)

≤1 Year Not established  
2-17 Years Male 15.0-38.0 µg/mL
2-17 Years Female 11.2-35.7 µg/mL
≥18 Years Male 7.3-36.6 µg/mL
≥18 Years Female 7.5-28.4 µg/mL
GlycoMark® reference ranges apply to persons without diabetes. In people with diabetes, under good to moderate glycemic control (Hemoglobin A1c levels ≤8%), GlycoMark® levels <8 µg/mL suggest significant glycemic variability, most likely due to post meal blood glucose levels increasing above 180 mg/dL.

Clinical Significance

Measures 1,5 anhydroglucitol, a glucose derived carbohydrate whose urinary excretion varies inversely with mean blood glucose. 1,5 anhydroglucitol appears to integrate variation in mean blood glucose over a period of about two weeks.

To view specimen requirements and codes please Select a regional laboratory.

Not sure which laboratory serves your office? Call us 866-MYQUEST (866-697-8378)

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided 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 payer being billed.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.

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GlycoMark®
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