St. Luke's Hospital
Located in Chesterfield, MO
Main Number: 314-434-1500
Emergency Dept: 314-205-6990 Patient Billing: 888-924-9200
Find a Physician Payment Options Locations & Directions
Follow us on: facebook twitter Mobile Email Page Email Page Print Page Print Page Increase Font Size Decrease Font Size Font Size
Meet the Doctor
Spirit of Women
Community Health Needs Assessment
Home > Health Information

Multimedia Encyclopedia



    Rapid deep breathing; Breathing - rapid and deep; Overbreathing; Fast deep breathing; Respiratory rate - rapid and deep

    Hyperventilation is rapid or deep breathing that can occur with anxiety or panic. It is also called overbreathing, and may leave you feeling breathless.

    See also: Rapid shallow breathing


    When you breathe, you breathe in oxygen and breathe out carbon dioxide. Excessive breathing creates low levels of carbon dioxide in your blood. This causes many of the symptoms of hyperventilation.

    Feeling very anxious or having a panic attack are the usual reasons that you may hyperventilate. However, rapid breathing may be a symptom of a disease, such as:

    • Bleeding
    • Heart or lung disorder
    • Infection

    Your doctor or nursewill determine the cause of your hyperventilation. Rapid breathing may be a medical emergency -- unless you have have had this before and have been reassured by your health care provider that it can be self treated.

    Often, panic and hyperventilation become a vicious cycle. Panic leads to rapid breathing, and breathing rapidly can make you feel panicked.

    If you frequently overbreathe, you may have hyperventilation syndrome that is triggered by emotions of stress, anxiety, depression, or anger. Occasional hyperventilation from panic is generally related to a specific fear or phobia, such as a fear of heights, dying, or closed-in spaces (claustrophobia).

    If you have hyperventilation syndrome, you might not be aware you are breathing fast. However, you will be aware of having many of the other symptoms, including:

    • Belching
    • Bloating
    • Chest pain
    • Confusion
    • Dizziness
    • Dry mouth
    • Lightheadedness
    • Muscle spasms in hands and feet
    • Numbness and tingling in the arms or around the mouth
    • Palpitations
    • Shortness of breath
    • Sleep disturbances
    • Weakness


    • Anxiety and nervousness
    • Bleeding
    • Cardiac disease, such as congestive heart failure or heart attack
    • Drugs (such as an aspirin overdose)
    • Infection such as pneumonia or sepsis
    • Ketoacidosis and similar medical conditions
    • Lung disease such as asthma, chronic obstructive pulmonary disease (COPD), or pulmonary embolism
    • Panic attack
    • Pregnancy
    • Severe pain
    • Situations where there is a psychological advantage in having a sudden, dramatic illness (for example, somatization disorder)
    • Stimulant use
    • Stress

    Home Care

    Your doctor or nurse will examine you and see if there are oter causes of your over-breathing.

    If your doctor or nurse has said your hyperventilation is due toanxiety, stress, or panic, there are steps you can take at home. You, your friends, and family can learn techniques to stop it from happening and prevent future attacks.

    If you start hyperventilating, the goal is to raise the carbon dioxide level in your blood, which will end most of your symptoms. There are several ways to do this:

    1. Get reassurance from a friend or family member to help relax your breathing. Words like "you are doing fine," "you are not having a heart attack," and "you are not going to die" are very helpful. It is extremely important that the person helping you remain calm and deliver these messages with a soft, relaxed tone.
    2. To increase your carbon dioxide, you need to take in less oxygen. To accomplish this, you can breathe through pursed lips (as if you are blowing out a candle) or you can cover your mouth and one nostril, and breathe through the other nostril.

    Over the long term, there are several important steps to help you stop overbreathing:

    1. If you have been diagnosed with anxiety or panic, see a psychologist or psychiatrist to help you understand and treat your condition.
    2. Learn breathing exercises that help you relax and breathe from your diaphragm and abdomen, rather than your chest wall.
    3. Practice relaxation techniques regularly, such as progressive muscle relaxation or meditation.
    4. Exercise regularly.

    If these methods alone are not preventing your overbreathing, your doctor may recommend a beta blocker medication.

    When to Contact a Medical Professional

    Call your health care provider if:

    • You are experiencing rapid breathing for the first time. (This is a medical emergency and you should be taken to the emergency room right away.)
    • You are in pain, have a fever, or notice any bleeding.
    • Your hyperventilation continues or gets worse, even with home treatment.
    • You also have other symptoms.

    What to Expect at Your Office Visit

    Your doctor will perform a careful physical examination.

    To get your medical history, your doctor will ask questions about your symptoms, such as:

    • Do you feel short of breath?
    • What other symptoms do you have when you are breathing rapidly? Do these symptoms start at any other time (for example, when you are walking or exercising)?
    • Do you have any medical conditions, such as high blood pressure, diabetes, or high cholesterol?
    • What medications do you take?
    • What is happening in your life in general? Has it been a particularly stressful time?
    • Do you feel anxious or stressed, especially before you start breathing rapidly?
    • Are you in pain? What does the pain feel like? How intense is the pain? Where is it located?
    • What other symptoms do you have (for example, have you had any bleeding? Are you dizzy?)

    The doctor will assess how rapidly you are breathing at the time of the visit. If you are not breathing quickly, the physician may try to induce hyperventilation by instructing you to breathe a certain way.

    While you hyperventilate, the doctor will ask how you feel and watch how you breathe -- including what muscles you are using in your chest wall and surrounding areas.

    Tests that may be performed include:

    • Blood tests for the oxygen and carbon dioxide levels in your blood
    • Chest CT scan
    • ECG
    • Ventilation/perfusion scan of your lungs
    • X-rays of the chest


    Duffin J, Phillipson EA. Hypoventilation and hyperventilation syndromes. In: Mason RJ, Broaddus CV, Martin TR, et al. Murray & Nadel's Textbook of Respiratory Medicine. 5th ed. Philadelphia, Pa: Saunders Elsevier; 2010:chap 78.

    Winter AO, Purcell TB. Somatoform disorders. In: Marx JA, ed. Rosen’s Emergency Medicine: Concepts and Clinical Practice. 7th ed. Philadelphia, Pa: Mosby Elsevier; 2009:chap 111.


          Tests for Hyperventilation

            Review Date: 8/14/2012

            Reviewed By: Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington. 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.

            A.D.A.M. content is best viewed in IE9 or above, Fire Fox and chrome browser.

            Back  |  Top
            About Us
            Contact Us
            Locations & Directions
            Quality Reports
            Annual Reports
            Honors & Awards
            Community Health Needs

            Brain & Spine
            Sleep Medicine
            Urgent Care
            Women's Services
            All Services
            Patients & Visitors
            Locations & Directions
            Find a Physician
            Tour St. Luke's
            Patient & Visitor Information
            Contact Us
            Payment Options
            Financial Assistance
            Send a Card
            Mammogram Appointments
            Health Tools
            My Personal Health
            Spirit of Women
            Health Information & Tools
            Clinical Trials
            Employer Programs -
            Passport to Wellness

            Classes & Events
            Classes & Events
            Spirit of Women
            Donate & Volunteer
            Giving Opportunities
            Physicians & Employees
            For Physicians
            Remote Access
            Medical Residency Information
            Pharmacy Residency Information
            Physician CPOE Training
            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
            Copyright © St. Luke's Hospital Website Terms and Conditions  |  Privacy Policy  |  Notice of Privacy Practices PDF  |  Patient Rights PDF Sitemap St. Luke's Mobile