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    Glucagon test

    A glucagon test measures the amount of a hormone called glucagon in your blood. Glucagon is produced by cells in the pancreas. It helps control blood sugar levels.

    How the Test is Performed

    Blood is typically drawn from a vein, usually from the inside of the elbow or the back of the hand.

    • The site is cleaned with germ-killing medicine (antiseptic).
    • The health care provider wraps an elastic band around the upper arm. This is doneto apply pressure to the area and make the vein swell with blood.
    • The health care provider gently inserts a needle into the vein. The blood collects into an airtight vial or tube attached to the needle.
    • The elastic band is removed from your arm.
    • Once the blood has been collected, the needle is removed. The puncture site is covered with a bandageto stop any bleeding.

    In infants or young children, a sharp tool called a lancet may be used to puncture the skin to draw blood. The blood collects into a small glass tube called a pipette, or onto a slide or test strip. A bandage may be placed over the area if there is any bleeding.

    The blood is sent to a laboratory. There,atest called radioimmunoassay (RIA) is used to check for the hormone glucagon in the blood.

    How to Prepare for the Test

    Your health care provider will tell you if you need to fast (not eat anything)for a period of time before the test.

    How the Test Will Feel

    When the needle is inserted to draw blood, some people feel moderate pain. Others feel only a prick or stinging sensation. Afterward, there may be some throbbing.

    Why the Test is Performed

    Glucagon stimulates the liver to release glucose. As the level of blood sugar decreases, the pancreas releases more glucagon, and vice versa.

    Thehealth care provider may measure glucagon level ifa person has symptoms of:

    • Cushing syndrome
    • DiabetesGlucagonoma (rare tumor of the pancreas) with symptoms of a skin rash called necrotizing migratory erythema, weight loss, mild diabetes, anemia, stomatitis, glossitis
    • Growth hormone deficiency in children
    • Liver cirrhosis
    • Low blood sugar (hypoglycemia)
    • Multiple endocrine neoplasia type I
    • Pancreatitis

    Normal Results

    The normal range is 50 - 100 pg/mL.

    Note: pg/mL = picograms per milliliter

    Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.

    The examples above show the common measurements for results for these tests. Some laboratories use different measurements or may test different specimens.

    What Abnormal Results Mean

    Abnormal results may indicate that the person may have a condition described above under Why the Test Is Performed.

    Risks

    Veins vary in size from one patient to another and from one side of the body to the other. Obtaining a blood sample from some people may be more difficult than from others.

    Other risks associated with having blood drawn are slight but may include:

    • Excessive bleeding
    • Fainting or feeling light-headed
    • Hematoma (blood accumulating under the skin)
    • Infection (a slight risk any time the skin is broken)

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                Tests for Glucagon test

                Review Date: 12/22/2012

                Reviewed By: Nestoras Mathioudakis, MD, Assistant Professor of Medicine, Division of Endocrinology & Metabolism, Johns Hopkins School of Medicine, Baltimore, MD. Review provided by VeriMed Healthcare Network. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, Stephanie Slon, and Nissi Wang.

                The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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