Serum or Plasma Free Fructosamine

What Does This Test Measure?

Fructosamine reflects the amount of glucose that has bonded with proteins in your bloodstream. Unlike traditional blood sugar tests, which only check current glucose levels, fructosamine gives a snapshot of how your blood sugar has fluctuated over a longer period. This test is particularly useful for people with diabetes who want to assess their glucose control over weeks rather than just immediate readings.

Why Might You Need This Test?

Your healthcare provider may order a fructosamine test if you have diabetes and want to monitor how well your blood sugar levels have been managed over time. It can also be useful for patients who experience frequent blood sugar swings or have conditions affecting protein metabolism.

How Is This Test Performed?

A small blood sample is taken from a vein, usually in your arm. The sample is then sent to a lab where it is analyzed using an immunoassay method to measure the fructosamine levels.

What Are the Clinical Implications?

Elevated fructosamine levels may indicate poor blood sugar control, especially in people with diabetes. Consistently high levels can signal that your glucose management plan may need adjustments. Lower than expected levels might suggest unusually low blood sugar over time, though this is less common.