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    Bronchitis - acute

    Acute bronchitis is swelling andinflammation of the main air passages to the lungs. This swelling narrows the airways, making it harder to breathe and causing other symptoms, such as a cough. Acute means the symptoms have only been present for a short time.

    Acute bronchitisalmost alwaysfollows a cold or flu-like infection. The infection is caused by a virus. At first, it affects your nose, sinuses, and throat. Then it spreads to the airways leading to your lungs.

    Sometimes, bacteria also infect the airways. This is called a secondary infection.

    Chronic bronchitis is a long-term condition. To be diagnosed with chronic bronchitis, you must have a cough with mucus most days of the month for at least 3 months.

    Symptoms

    The symptoms of acute bronchitis may include:

    • Chest discomfort
    • Cough that produces mucus; it may be clear or yellow-green
    • Fatigue
    • Fever -- usually low-grade
    • Shortness of breath that gets worse with activity
    • Wheezing, in people with asthma

    Even after acute bronchitis has cleared, you may have a dry, nagging cough that lingers for 1 to 4 weeks.

    At times, it may be hard to know whether you have pneumonia or only bronchitis. If you have pneumonia, you are more likely to have a high fever and chills, feel sicker, or feel short of breath.

    Exams and Tests

    The health care provider will listen to your lungs with a stethoscope. Abnormal, coarse breathing sounds may be heard.

    Tests may include:

    • Chest x-ray, if the health care provider suspects pneumonia
    • Pulse oximetry to help determine the amount of oxygen in your blood by using a deviceplaced on the end of your finger

    Treatment

    Most peopleDO NOT need antibiotics for acute bronchitis. The infection will almost always go away on its own within 1 week. Take the following steps to get relief:

    • Drink plenty of fluids.
    • If you have asthma or another chronic lung condition, use your inhaler (such as albuterol).
    • Rest.
    • Take aspirin or acetaminophen (Tylenol) if you have a fever. DO NOT give aspirin to children
    • Use a humidifier or steam in the bathroom.

    Certain medicines that you can buy without a prescription can help break up or loosen mucus. Look for the word "guaifenesin" on the label.

    If your symptoms do not improve, your doctor may prescribe an inhaler to open your airways if you are wheezing.

    Sometimes, bacteria may also infect the airways along with the virus. If your doctor thinks this has happened, you may be prescribed antibiotics.

    Other tips include:

    • DO NOT smoke.
    • Avoid secondhand smoke and air pollution.
    • Wash your hands (and your children's hands) often to avoid spreading viruses and other infections.

    Outlook (Prognosis)

    Symptoms usually go away in 7 to 10 days if you do not havea lung disorder. However, a dry, hacking cough can linger for a number of months.

    When to Contact a Medical Professional

    Call your doctor if:

    • You have a cough on most days, or you have a cough that often returns
    • You are coughing up blood
    • You have a high fever or shaking chills
    • You have a low-grade fever for 3 or more days
    • You have thick, greenish mucus, especially if it has a bad smell
    • You feel short of breath or have chest pain
    • You have a chronic illness, like heart or lung disease

    References

    Walsh EE. Acute bronchitis. In: Mandell GL, Bennett JE, Dolin R, eds. Principles and Practice of Infectious Diseases. 7th ed. Philadelphia, Pa: Elsevier Churchill Livingstone; 2009:chap 61.

    Ferri FF. Acute bronchitis. In: Ferri FF, ed. Ferri's Clinical Advisor 2013. 1st ed. Philadelphia, Pa: Mosby Elsevier; 2012:section 1.

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            Tests for Bronchitis - acute

              Review Date: 7/15/2012

              Reviewed By: Denis Hadjiliadis, MD, Assistant Professor of Medicine, Division of Pulmonary, Allergy and Critical Care, University of Pennsylvania, Philadelphia, PA. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.

              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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