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    Abscess scan - radioactive

    Radioactive abscess scan; Abscess scan

    Radioactive abscess scan looksabscesses in the body using a radioactive material. An abscess occurs when pus collects due to an infection.

    How the Test is Performed

    Blood is drawn from a vein, most oftenon 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 to apply pressure to the area and make the vein swell with blood.
    • Next, 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.
    • The puncture site is covered to stop any bleeding.

    The blood sample is then sent to a lab. There the white blood cells are tagged with a radioactive substance called indium. The cells arethen injectedback into a vein body through another needle stick.

    You will need to return to the office 6-24 hours later. At that time, you will have anuclear medicine scan to see if white blood cells havegathered in areas of your body where they would not be normally.

    How to Prepare for the Test

    Most of the time you do not need special preparation. You will need to sign a consent form.

    For the test, you will need to weara hospital gown or loose clothing. You will need totake off all jewelry.

    Tell the health care provider if you are pregnant. This procedure is NOT recommended if you are pregnant or trying to become pregnant. Women of childbearing age (before menopause) should use some form of birth control during the course of this procedure.

    Tell your health care provider if you have or had any of the following medical conditions, procedures, or treatments, as they can interfere with test results:

    • Gallium (Ga) scan within the past month
    • Hemodialysis
    • Hyperglycemia
    • Long-term antibiotic therapy
    • Steroid therapy
    • Total parenteral nutrition (through an IV)

    How the Test Will Feel

    Some people feel a little pain whenthe needle is inserted to draw blood.Others feel only a prick or sting.Afterward, there may be some throbbing.

    The nuclear medicine scan is painless. It may be a little uncomfortable to lie flat and still on the scanning table. This is only for a short time.

    Why the Test is Performed

    An abscess may form after surgery, or it may form on its own. Symptoms of an abscess depend on where it is found, but may include:

    • Fever
    • Not feeling well (malaise)
    • Pain

    This test is used to locate an abscess in the body. Often, other imaging tests such as an ultrasound or CT scan may be done first.

    Normal Results

    Normal findings would show no abnormal gathering of white blood cells.

    What Abnormal Results Mean

    A gathering of white blood cells outside of the normal areas is a sign of either an abscess or other type of inflammatory process.

    Some types of abscess are:

    • Abdominal abscess
    • Amebic liver abscess
    • Anorectal abscess
    • Bartholin's abscess
    • Epidural abscess
    • Peritonsillar abscess
    • Pyogenic liver abscess
    • Skin abscess
    • Spinal cord abscess
    • Subcutaneous abscess
    • Tooth abscess

    Risks

    • Some bruising may occur at the site of injection.
    • There is always a slight chance of infection when the skin is broken.
    • There is low-level radiation exposure.

    The test is controlled so that you get only the smallest amount ofradiation exposure needed to produce the image. Most experts feel that the risk is very low compared with the benefits.

    Pregnant women and children are more sensitive to the risks of the x-ray.

    References

    Segerman D, Miles KA. Radionuclide imaging: general principles. In: Adam A, Dixon AK, eds. Grainger & Allison's Diagnostic Radiology: A Textbook of Medical Imaging. 5th ed. New York, NY: Churchill Livingstone;2008:chap 7.

    Wilson DJ, Berendt AR. Bone and soft tissue infection. In: Adam A, Dixon AK, eds. Grainger & Allison's Diagnostic Radiology: A Textbook of Medical Imaging. 5th ed. New York, NY: Churchill Livingstone;2008:chap 51.

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              Tests for Abscess scan - radioactive

              Review Date: 11/9/2012

              Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. 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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