$9.00
Priced per marker, with baseline labs included. You’ll see your total before you pay.
Metabolism & organs
Fructosamine test
Can reflect average blood glucose over the past 2–3 weeks (shorter window than A1c).
At a glance
In about 5 days
Most results are ready in about 5 days. Some specialty markers can take up to 21 days.
Check before your draw
This marker has no preparation tag, but it can still need preparation. Contact us before your draw if you’re not sure.
Walk in at Quest
Your lab order arrives by email. Most Quest locations take walk-ins, so bring it with a photo ID.
What it measures
Fructosamine can show your average blood sugar over the past few weeks. It measures how much sugar has stuck to proteins in your blood.
Why it matters for women
Iron deficiency, common with heavy periods, and pregnancy can both throw off the usual long-term blood sugar test, which depends on red blood cells. Fructosamine doesn’t, so it can offer another view and can show changes within weeks. Low blood protein can lower it, so it’s read with your albumin, the main protein in blood.
You might check it if…
- anemia or heavy periods may be skewing other sugar tests
- you want to see how your blood sugar changed in recent weeks
- a doctor recently changed your diabetes care plan
What your result may mean
High Fructosamine: what it may mean
High fructosamine may mean your average blood sugar over the past 2 to 3 weeks has been high. It can help when A1c is harder to trust, such as with iron deficiency from heavy periods or during pregnancy, and it can show changes within weeks. Diabetes and gestational diabetes can raise it. Very high blood protein levels can also push it up, so your albumin can help put it in context. You may notice thirst, frequent urination or tiredness, and some people may feel nothing.
Low Fructosamine: what it may mean
Low fructosamine may mean your blood sugar has stayed well controlled, or it can mean low blood protein has pulled the result down falsely. Low albumin, the main protein in blood, can come with liver disease, kidney protein loss, malnutrition or pregnancy. An overactive thyroid (hyperthyroidism) can also lower it, because proteins may turn over faster. A low value by itself may cause no symptoms, so a clinician may compare it with your albumin and A1c before reading much into it.
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These notes provide context and do not diagnose a condition. Not yet available in NY, NJ, RI, HI, ND, SD or WV.