GlycoMark® and Hb A1c
Also known as: Hb A1c and 1-5 Anhydroglucitol
Use
GlycoMark® testing provides an estimate of the patient's postmeal glucose during a one- to two-week period, making it ideal for intermediate term monitoring of glycemic control in diabetic patients. GlycoMark® testing can also help to monitor the effectiveness of therapeutics targeting postprandial glucose (PPG),1,2 and is a useful adjunct to routine A1c testing, because it responds more rapidly and sensitively to hyperglycemia than A1c.1,2
Special Instructions
Not provided.
Limitations
Individuals using INVOKANA® or other SGLT2 inhibitors may show low levels of 1,5-AG due to interference with renal reabsorption. Persistently positive urinary glucose levels, pregnancy, renal failure, and other conditions can affect 1,5-AG values. Values may rise with certain Chinese medicines or during intravenous hyperalimentation and decrease under steroid therapy.
Methodology
Automated Analyzer (Clinical Chemistry)
Biomarkers
LOINC Codes
- 4548-4 - HbA1c MFr Bld
- 53835-5 - 1,5-Anhydroglucitol SerPl-mCnc
Result Turnaround Time
3-10 days
Related Documents
For more information, please review the documents below
Specimen
Whole Blood
Volume
3 mL
Minimum Volume
1 mL
Container
Lavender-top (EDTA) tube, green-top (lithium heparin) tube, gray-top (sodium fluoride) tube, or tan-top (K2 EDTA) tube
Storage Instructions
Refrigerate
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 14 days |
Other tests from different labs that may be relevant