Technical Resources


Description Specification Packaging/
Part Number
Intended Use The GlycoMark test provides quantitative measurements of 1,5-anhydroglucitol (1,5-AG) in serum or plasma. The test is for professional use, and is indicated for the intermediate term monitoring of glycemic control in people with diabetes. n/a
Reference Range* Normal: 10-31 µg/mL

Abnormal: <10 µg/mL

Sample Type Serum, EDTA plasma n/a
Sample Storage/Transport Samples should be transported under refrigeration and tested within one week of collection. For storage longer than one week, freezing of the serum sample is recommended. Aliquots of frozen samples may be thawed and re-frozen for up to three cycles. n/a
Sample Stability Studies have shown that serum samples are stable at 2-8°C for up to one week n/a
GlycoMark Calibration Standard 5 mL x 3 vials REF NK-8320
GlycoMark Controls 2 mL x 6 vials (3 high and 3 low controls) REF NK-8330
Saline reagent blank 0.9% NaCl in deionized water  n/a
Chemistry analyzer See List of Validated Instruments  n/a
Storage / Stability – Kits, Controls and Calibrators The GlycoMark kit reagents are stable at refrigerated temperatures (2-8°C) until the expiration date noted on the outer box. Once the reagents have been opened, they are stable for 30 days (at 2-8°C). n/a
Proficiency Material Available from the College of American Pathologists (CAP) at 847-832-7000 or Order Code “AG”

GlycoMark Reference Ranges:

Reference Interval µg/mL
Males 10.7 – 32.0
Females 6.8 – 29.3
Overall 9.7 – 31.4

Additional Technical Resources:

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*Normal GlycoMark results are lower in females than in males.