1,5-Anhydroglucitol (1,5-AG), Intermediate Glycemic Control

Message

Interfaced

Test Code

GLYCOMARK

Quest Code

10378

Preferred Specimen

1 mL serum collected in serum separator tube (SST), received spun

Minimum Volume

0.5 mL

Other Acceptable Specimens

Plasma collected in: EDTA (lavender-top) tube

Transport Container

Serum separator tube (SST)

Transport Temperature

Room temperature

Specimen Stability

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

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Hemolysis • Anticoagulants other than EDTA • Unspun red-top tubes

Methodology
Enzymatic

FDA Status
The analytical performance characteristics of this assay have been determined by Quest Diagnostics. The modifications have not been cleared or approved by the FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

Sun, Tues, Thurs-Sat

Reference Range

Age	Male (mcg/mL)	Female (mcg/mL)
≤1 year	Not established	Not established
2-17 years	15.0-38.0	11.2-35.7
≥18 years	7.3-36.6	7.5-28.4

Clinical Significance

Diazyme 1,5-anhydroglucitol (1,5-AG) Assay is an enzymatic method intended for the quantitative determination of 1,5-anhydroglucitol (1,5-AG) in serum or plasma. The 1,5-AG Assay is for the intermediate term (preceding 1-2 weeks) monitoring of glycemic control in people with diabetes.

Performing Laboratory

Quest Diagnostics Nichols Institute-Chantilly VA

14225 Newbrook Drive

Chantilly, VA 20151-2228

The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.