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Why Are My Dog's GDH Levels Abnormal ?

Why Are My Cat's GDH Levels 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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Glutamate Dehydrogenase Blood Levels


Glutamate dehydrogenase is an enzyme that helps metabolize glutamate, one of the amino acids absorbed from food or synthesized in your dog or cat's body. It’s blood level is an indication of liver function. GDH levels tend to rise only when serious damage (necrosis) has occurred to the hepatocytes that make up your pet’s liver.

As such, elevated GDH levels are a more sensitive indicator of liver damage than your pet's AST or AP which can both go up in a number of less life-threatening liver problems or arise from non-liver sources, or in relation to increased blood bilirubin levels.

Reasons Why Your Pet’s GLDH Levels Be High :

Liver cell destruction (hepatocellular necrosis), ingestion of toxic products, tainted foods or medications (such as giving Tylenol to cats, medications at too high a dose or a unique reaction to a medication that your veterinarian could not have predicted), lack of liver blood supply (hepatic hypoxia), congestive heart failure and bile duct obstruction can all cause elevated GDH levels in your pet.

Complementary Tests :

ALT, AST, bile acids

.................... DxMe