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Test Code FRUCTOSAMN Fructosamine, Serum

Reporting Name

Fructosamine, S

Useful For

Assessing intermediate-term glycemic control

Specimen Required


Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 1 mL

Collection Instructions:

1. Serum gel tubes should be centrifuged within 2 hours of collection.

2. Red-top tubes should be centrifuged and aliquoted within 2 hours of collection.

Seattle Children's Hospital Note:

Collect 2.0 mL whole blood in a Red top.

Specimen Type


Specimen Minimum Volume

0.25 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 7 days
  Frozen  7 days
  Ambient  72 hours

Day(s) and Time(s) Performed

Monday through Sunday; Continuously

Performing Laboratory

Mayo Medical Laboratories in Rochester

Method Name

Colorimetric Rate Reaction

Method Description

The fructosamine assay is a colorimetric test based on the ability of ketoamines to reduce nitroblue tetrazolium to formazan in an alkaline medium. The rate of formation of formazan is directly proportional to the concentration of fructosamine, and is measured photometrically at 546 nm.(Package insert: Roche Fructosamine reagent, Roche Diagnostics Corp., Indianapolis, IN 1999)

Reference Values

200-285 mcmol/L

Test Classification

This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
FRUCT Fructosamine, S 15069-8


Result ID Test Result Name Result LOINC Value
FRUCT Fructosamine, S 15069-8

Reject Due To


Mild reject; Gross reject




Mild reject; Gross reject