Test Details

Mnemonic

GLYM

Ordering Code

3427720

CPT-4 Code(s)

84378

Specimen Information

Collect

Serum separator tube (SST)

Specimen Preparation

Centrifuge, separate serum from cells and send 1.0 mL serum refrigerated in a screw capped plastic vial.

Alternate Specimen

Plasma: EDTA
Serum: Red top

Minimum Volume

0.5 mL

Transport Temperature

Refrigerated

Rejection Criteria

Gross hemolysis, plasma other than EDTA

Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days

Methodology

Colorimetric, Enzymatic
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Reference Range

≤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.
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Performing Laboratory

Quest SJC
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