Why Is My Dog's Blood Fructosamine Level Abnormal ?
Why Is My Cat's Blood Fructosamine Level Abnormal ?
To see what normal blood and urine values are for your pet, go here
For an explanation of causes of most abnormal blood and urine tests go here
To see how tests are often grouped, go here
Ron Hines DVM PhD
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Your Pet's Blood Fructosamine Levels
aka Glycated Blood Albumin
Veterinarians suggest a fructosamine blood test for your dog or cat when they are concerned about its blood sugar levels. That is usually because they suspect - or are treating - diabetes.
Your pet’s blood glucose levels tell vets quite a bit about how well it’s pancreas (source of its insulin) is regulating sugar levels; but in cats especially, levels calculated at any single time may not give a proper indication of the pet’s long-term sugar level control. That is because the stress of the drive to your vets office and apprehension once it gets there often raises its blood glucose level.
The fructosamine test gets around that. Its value - determined in a single blood test - measures elevated blood glucose (persistent hyperglycemia) over the previous 7-14 days.
A fructosamine test while your pet is on insulin therapy is also useful. It can help your veterinarian determine if the insulin dose, insulin type and interval between injections is optimal. (as can the glysosylated hemoglobin test). Fructosamine should be within near-normal values if your pet's diabetes is under good control.
The test is also useful for pets that live in out-of-the-way places. The level of blood glucose in samples goes down proportionately to the length of time it takes to get the sample to a laboratory to be run. Fructosamine in blood samples is considerably more stable than glucose.
Reasons Your Pet’s Blood Fructosamine Levels Might Be High :
Uncontrolled or poorly controlled diabetes (on rare occasions, prolonged periods of stress keep your pet's blood glucose levels high enough to give a false-positive fructosamine result for diabetes).
Reasons Your Pet’s Blood Fructosamine Levels May Be Low Or Fail To Indicate Diabetes When Diabetes Is Present :
Low blood albumin protein (hypoalbuminemia) or the presence of an insulin-secreting tumor in your pet’s pancreas (insulinoma) can also keep blood fructosamine levels low.
Complimentary Tests :
Blood glucose level, Blood glucose curve, blood albumin level, glycosylated hemoglobin