Fructosamine Testing for Dogs and Cats

What is a fructosamine test?

A fructosamine test is a blood test that measures your pet’s average blood sugar levels over the past 2–3 weeks. It is commonly used to monitor diabetes in both dogs and cats.

Unlike a single glucose reading, this test provides a broader picture of how well blood sugar has been controlled over time.

Why is fructosamine testing important?

Blood glucose levels can fluctuate throughout the day due to stress, meals, and activity. Fructosamine testing helps give a more stable and accurate assessment of long-term glucose control.

This test helps your veterinarian:

  • Evaluate how well insulin therapy is working

  • Adjust insulin doses safely

  • Identify trends in blood sugar levels

  • Reduce the risk of complications from uncontrolled diabetes

When does my pet need a fructosamine test?

Fructosamine testing is typically recommended:

  • After starting insulin therapy

  • After changes in insulin dose

  • Every few months for ongoing diabetes monitoring

  • If symptoms of poor regulation appear

Signs your pet may need testing

  • Increased thirst and urination

  • Weight loss despite normal or increased appetite

  • Lethargy or decreased energy

  • Changes in appetite

If you notice these signs, your veterinarian may recommend testing to assess blood sugar control.

What to expect during the test

  • A small blood sample is taken

  • No fasting is usually required

  • No anesthesia is needed

Results help guide treatment decisions and ensure your pet’s diabetes is being managed effectively.

Understanding your pet’s results

  • High fructosamine levels may indicate poorly controlled diabetes

  • Lower or normal levels suggest better blood sugar control

Your veterinarian will interpret results alongside clinical signs and may adjust your pet’s insulin or treatment plan as needed.

Schedule a fructosamine test

Consistent monitoring is key to managing diabetes and keeping your pet feeling their best.

If your pet has diabetes or is showing signs of blood sugar changes, contact our team today to schedule a fructosamine test.