Fructosamine

Test Code
8340

CPT Codes
82985

Preferred Specimen
1 mL serum submitted in a serum separator tube (SST®)

Minimum Volume
0.5 mL

Other Acceptable Specimens
Plasma collected in: sodium or lithium (green-top), or EDTA (lavender-top) tube

Instructions
Plasma: Separate from cells prior to submission.

Transport Container
Plastic screw-cap vial

Transport Temperature
Refrigerated (cold packs)

Specimen Stability
Serum
Room temperature: 5 days
Refrigerated: 14 days
Frozen: 60 days
Plasma
Room temperature: 72 hours
Refrigerated: 14 days
Frozen: 60 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Moderate or grossly icteric

Methodology
Spectrophotometry (SP)

Setup Schedule
Set up: Mon-Fri a.m., p.m., and nights; Report available: Next day

Limitations
Patients with low albumin concentrations may exhibit depressed levels of fructosamine.

Reference Range
190-270 umol/L

Clinical Significance
The fructosamine assay is useful in monitoring the degree of glycemia over short-to-intermediate time frames (1-3 weeks). A fructosamine concentration greater than the established normal range is an indication of prolonged hyperglycemia of 1-3 weeks or longer. The higher the fructosamine value, the poorer the degree of glycemia control.

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153



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.