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    Sibilant rhonchi

    Wheezing is a high-pitched whistling sound during breathing. It occurs when air moves through narrowed breathing tubes.


    Wheezing is a sign that a person may be having breathing problems. The sound of wheezing is most obvious when breathing out (exhaling), but may be heard when taking a breath (inhaling).

    Wheezing most often comes from the small breathing tubes (bronchial tubes) deep in the chest, but it may be due to a blockage in larger airways or in persons with certain vocal cord problems.


    • Asthma
    • Breathing a foreign object into the lungs
    • Bronchiectasis
    • Bronchiolitis
    • Bronchitis
    • Emphysema (COPD), especially when a respiratory infection is present
    • Gastroesophageal reflux disease
    • Heart failure (cardiac asthma)
    • Insect sting that causes an allergic reaction
    • Medications (particularly aspirin)
    • Pneumonia
    • Smoking
    • Viral infection, especially in infants younger than age 2

    Home Care

    Always take all of your medications as directed.

    Sitting in an area where there is moist, heated air may help relieve some symptoms. This can be done byrunning a hot shower or using a vaporizer.

    When to Contact a Medical Professional

    Call your health care provider if:

    • Wheezing occurs for the first time
    • Wheezing occurs with significant shortness of breath, bluish skin, confusion, or mental status changes
    • Wheezing keeps occurring without explanation
    • Wheezing is caused by an allergic reaction to a bite or medication

    If wheezing is severe or occurs with severe shortness of breath, you may have to go directly to the nearest emergency department.

    What to Expect at Your Office Visit

    The doctor or nurse will perform a physical examination and ask questions about your medical history and symptoms, including:

    • When did the wheezing begin?
    • How long does it last?
    • When and how often does it occur?
    • Is it worse at night or in the early morning?
    • What does the wheezing sound like?
    • Does it make breathing difficult?
    • What seems to cause it?
      • Eating certain foods?
      • Taking certain medications?
    • Do any of the following things make it worse?
      • Being around pollens, insects, dust, chemicals (perfumes, cosmetics)
      • Being in cold air
      • Exercise
      • Sickness (such as a cold or the flu)
      • Stress
    • Does it go away without treatment?
    • What helps relieve it?
      • Rest?
      • Medications such as bronchodilators?
    • Do you have any other symptoms, such as:
      • Bluish color to lips or nails
      • Coughing
      • Fever
      • Loss of consciousness
      • Loss of voice
      • Panic or confusion
      • Puffy, red eyes
      • Stuffy nose
      • Swelling of the lips or tongue
    • Did you have an episode of choking?
    • Did you have an insect bite?
    • Do you have a history of asthma or allergies?
    • What medications do you take?
    • Have you been around tobacco smoke?
    • Have you recently been sick?

    The physical examination may include listening to the lung sounds (auscultation). If your child is the one with symptoms, the doctor will make sure he or she did not swallow a foreign object.

    Tests that may be done include:

    • Blood work, possibly including arterial blood gases
    • Chest x-ray
    • Lung function tests

    A hospital stay may be needed if:

    • Breathing is particularly difficult
    • Medicines need to be given through a vein (IV)
    • Supplemental oxygen is required
    • The person needs to be closely watched by medical personnel


    Schatz M. Asthma in adolescents and adults. In: Bope ET, Rakel RE, Kellerman R, eds. Conn’s Current Therapy 2012. 2nd ed. Philadelphia, Pa: Saunders Elsevier; 2012:section 6.

    Szefler SJ. Advances in pediatric asthma in 2009: gaining control of childhood asthma. J Allergy Clin Immunol. 2010 Jan;125(1):69-78.


    • What causes wheezing?


    • Lungs


    • What causes wheezing?


    • Lungs


    A Closer Look

      Talking to your MD

        Self Care

          Review Date: 5/16/2012

          Reviewed By: Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. 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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          St. Luke's Hospital - 232 South Woods Mill Road - Chesterfield, MO 63017 Main Number: 314-434-1500 Emergency Dept: 314-205-6990 Patient Billing: 888-924-9200
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