Glucagon

The glucagon test is essential for diagnosing various metabolic disorders and is critical for monitoring patients with diabetes or glucagonoma. At IntroLab, our expert team ensures precise and reliable analysis of your sample.

What is Glucagon?

Glucagon is a single-chain polypeptide hormone composed of 29 amino acids, secreted by the alpha cells of the pancreatic islets of Langerhans. This hormone plays a key role in regulating blood glucose levels. Specifically, glucagon helps increase blood glucose concentration through the processes of glycogenolysis and gluconeogenesis in the liver, providing energy for the body’s normal functioning.

Why is measuring Glucagon important?

Measuring glucagon levels in the blood is essential for diagnosing various metabolic disorders, including diabetes and glucagonoma, a rare type of pancreatic tumor. Elevated glucagon levels can signal the presence of these conditions, whereas decreased levels are uncommon and typically seen in newborns.

When is a Glucagon test needed?

A glucagon test is necessary if there is suspicion of glucagonoma, diabetes, or other carbohydrate metabolism disorders. Reasons for performing this test may include the following symptoms:

• Weight Loss: Unexplained weight loss can be indicative of metabolic disorders.
• Depression: Although not directly linked to glucagon levels, depression can be a symptom of various health issues, including metabolic disorders.
• Anemia: Low red blood cell count can be a symptom of glucagonoma.
• Diarrhea: This symptom can be associated with glucagonoma, which increases glucagon levels.
• Necrolytic Migratory Erythema: This specific type of dermatitis is often linked to glucagonoma and may indicate the need for a glucagon test.

How are the results interpreted?

The interpretation of glucagon test results depends on the specific levels of this hormone in the blood. Elevated glucagon levels may indicate conditions such as glucagonoma, diabetes, stress, trauma, burns, myocardial infarction, sepsis, or neonatal hypoxia. Low glucagon levels are rare and may suggest certain metabolic abnormalities.