Glucagon
Definition A blood test that measures the amount of glucagon in the blood.
Why is the Test Performed?
Glucagon levels may be measured in persons with mild diabetes, weight loss and a particular skin rash (necrolytic migratory erythema).
Glucagon is a hormone that is produced by cells in the pancreas. It helps to regulate blood sugar levels. As the level of blood sugar is decreased, the pancreas releases more glucagon, and vice versa. The hormone acts by stimulating the liver to release glucose.
In a rare syndrome, a pancreatic tumor can produce excess glucagon.
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