Glucagon Blood Test

What is a glucagon blood test?

This test measures the amount of glucagon in the blood. Glucagon is a hormone made by the pancreas. It helps control your body’s level of glucose (blood sugar). Glucose is your body’s main source of energy. When glucose levels drop, the pancreas releases glucagon into the bloodstream. This triggers the production of glucose. As glucose levels rise, less glucagon is released. If the pancreas doesn’t release the right amount of glucagon, it can lead to serious health problems.

Other names: glucagon blood test, hypoglycemia-glucagon test, glucagon-plasma

What is it used for?

A glucagon test is most often used to help diagnose the following conditions:

  • Hypoglycemia, a condition in which your glucose levels are lower than normal. Severe hypoglycemia can be deadly if it’s not treated. The condition often affects people with diabetes. It can happen when diabetes medicine and/or food intake are not at the right levels.
  • Pancreatitis, an inflammation of the pancreas. It can be acute or chronic. Acute means it appears suddenly and lasts for several days. Symptoms of acute pancreatitis are more severe and may require immediate medical attention. Chronic pancreatitis is a long-term condition. It gets worse over time and can lead to permanent damage. Symptoms may not appear until there are complications.
  • Glucagonoma, a rare type of tumor of the pancreas

The test is sometimes used to monitor people with diabetes.

Why do I need a glucagon blood test?

You may need this test if you have symptoms of hypoglycemia or a pancreatic tumor.

Symptoms of hypoglycemia include:

  • Fast or irregular heartbeat
  • Tingling in the lips, tongue, or cheeks
  • Anxiety
  • Irritability
  • Sweating
  • Blurred vision
  • Fatigue
  • Pale skin
  • Hunger

Symptoms of a pancreatic tumor include:

  • A rash on the face, stomach, or legs
  • Diarrhea
  • Weight loss
  • Sores in the mouth or tongue

What happens during a glucagon blood test?

A health care professional will take a blood sample from a vein in your arm, using a small needle. After the needle is inserted, a small amount of blood will be collected into a test tube or vial. You may feel a little sting when the needle goes in or out. This usually takes less than five minutes.

Will I need to do anything to prepare for the test?

You may need to fast (not eat or drink) for several hours before the test.

Are there any risks to the test?

There is very little risk to having a blood test. You may have slight pain or bruising at the spot where the needle was put in, but most symptoms go away quickly.

What do the results mean?

If your glucagon levels were not in the normal range, it may mean you have one of the following conditions:

  • Hypoglycemia
  • Diabetes
  • Acute or chronic pancreatitis
  • Glucagonoma (pancreatic tumor)

If you have questions about your results, talk to your health care provider.

Is there anything else I need to know about a glucagon blood test?

A glucagon blood test and a test called a glucagon stimulation test are both often called glucagon tests. But they are not the same thing. A glucagon blood test is used to check conditions related to glucose levels. A glucagon stimulation test checks for problems with growth hormones. It is most often used for infants and children.

Post source: medlineplus

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