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Fructosamine
Test CodeFRUCT
Alias/See Also
LAB1013
CPT Codes
<p>82985</p>
Preferred Specimen
Specimen Type: Serum
Collection Container/Type: Serum gel
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Specimen Type: Plasma
Collection Container/Type
Preferred: Lavender top (EDTA)
Acceptable: Green top (sodium or lithium heparin)
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions: Separate from cells prior to submission.
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
Room temperature: 72 hours
Refrigerated: 14 days
Frozen: 60 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Moderately icteric
Methodology
Spectrophotometry (SP)
Setup Schedule
Set up: Mon-Fri a.m., p.m., and nights; Report available: Next day
Report Available
Next day
Limitations
Patients with low albumin concentrations may exhibit depressed levels of fructosamine.
Reference Range
205-285 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
Last Updated: October 15, 2019