GlycoMark
Test Mnemonic
GLYMRK
CPT Codes
- 84378 - QTY (1)
LOINC ®
53835-5
Aliases
- 1,5-anhydroglucitol
Performing Laboratory
Cleveland HeartLab, Inc.
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | SST (Gold) | Refrigerated |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Plasma | EDTA (Lavender) | Refrigerated | ||
| 1 mL | Serum | No additive (Red) | Refrigerated |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | Not acceptable |
| Refrigerated | 7 days |
| Frozen | > 7 days |
Days Performed
Tue, Fri
Turnaround Time
2 - 7 days
Methodology
| Name | Description |
|---|---|
| Enzymatic |
Clinical Info
GlycoMark® reference ranges apply to persons without diabetes. The GlycoMark® test may be performed monthly on individuals with moderately controlled diabetes and HbA1c of 6 - 8 % to detect glucose excursions, and to monitor efficacy of therapy changes in diabetic individuals with high HbA1c (> 8%). CLINICAL SIGNIFICANCE: Measures 1,5 anhydroglucitol (1,5-AG), a glucose derived carbohydrate whose urinary excretion varies inversely with mean blood glucose. 1,5-AG appears to integrate variation in mean blood glucose over a period of about two weeks. Low circulating levels of 1,5-AG are associated with elevated levels of urinary albumin and N-acetylglucosaminidase, both markers of renal damage.