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Flexible bronchoscopy (pronounced bron-kos-ko-pee) is a procedure that enables your physician or surgeon to examine the major air passages of the lungs. This allows your physician to evaluate your lungs and take small samples of tissue or fluid, if necessary. Usually the procedure is performed after you are mildly sedated and your nose or mouth is numbed. Your physician will then insert a bronchoscope, which is a flexible, lighted tube, about the width of a pencil, through your nose or mouth and into your windpipe. A small channel in the instrument allows tissue and fluid samples to be collected when appropriate.

This brochure is intended for adults undergoing bronchoscopy and parents of children who will have the procedure. Any part of the procedures that is different for children is noted in the appropriate section.

Why Should I Have a Bronchoscopy?

There are many medical reasons for having a bronchoscopy. Common reasons include abnormal findings on a chest X-ray or CT scan (like a spot on the lung), or coughing up blood. Diseases of the lung, such as pneumonia, tuberculosis or lung cancer, can be found by sampling lung fluid or tissue. Samples are sent to a laboratory for testing, and results may assist your doctor in making a diagnosis.

In children, reasons for having a bronchoscopy include noisy breathing or persistent choking that does not respond to therapy. Doctors also may do a bronchoscopy to follow up with babies who were born early, had a tracheostomy, or have abnormal findings on a chest X-ray that do not change over time. If a child gets an object caught in his airway, he may need to go to the operating room for removal of the object by a surgeon using a rigid bronchoscope.

How Do I Prepare for a Bronchoscopy?

  1. Your physician will review all the medications you are taking and may have you stop taking certain medications prior to the procedure. Certain medications can complicate the bronchoscopy procedure, so a complete review of your medication by the physician is necessary.
  2. If you are diabetic, your medication or insulin dose may need to be adjusted both before and after the procedure.
  3. Blood tests sometimes may be necessary prior to the procedure.
  4. Do not eat or drink anything (not even water) for six hours prior to the procedure. It is important that your stomach is empty well before the bronchoscopy to lessen certain risks, such as vomiting during the procedure. However, you may take your regular medications with a little water. If your child is to have a bronchoscopy, your doctor may give you special instructions and request the child not eat or drink for a longer period of time.
  5. Bring someone to drive you home, or arrange for alternate transportation. If you receive sedation during the procedure, you are not allowed to drive or travel by yourself for 12 hours after the procedure.

How is Bronchoscopy Performed?

Before the procedure begins, you will receive medication that will numb your mouth, nose and throat. The medication will help you relax, reduce any cough, and limit throat irritation. A small needle will be inserted into a vein so additional medications can be given.

Your nurse or physician will connect you to a heart and blood pressure monitor. You will be given extra oxygen through your nose during the exam. If needed, additional sedation may be given through the needle in your vein.

Your physician will then pass the bronchoscope through your mouth and throat (in children, the tubes pass through the nose), through your vocal cords to your windpipe, and into your lungs. When the tube passes through your vocal cords, you may feel the urge to cough or feel some minor discomfort. The feeling is not unusual and is temporary. Your physician will stop to let you catch your breath before continuing the examination.

During the procedure, medication will be given through the scope to help relieve any coughing. You can help by taking slow, shallow breaths through your mouth.

Do not talk during the procedure. Talking can make you hoarse or give you a sore throat after the procedure.

Occasionally, the examination is done with the aid of X-ray equipment to help your physician locate the exact area from which to take a sample. Pain is unlikely to occur during the procedure. A nurse or another health care professional will be present during the exam to assist you and the physician.

Bronchoscopy is a safe test that carries little risk. Complications are rare, but if they occur, they may include a collapsed lung, bleeding from the sample site, an allergic reaction to medicines, hoarseness, and slight fever. Only rarely do patients experience other, more serious complications. If problems occur, the doctor and health care professional can easily take care of them.

What Happens After a Bronchoscopy?

When the procedure is finished, you will be observed until you are awake enough to leave. Tell the nurse if you have any chest pain, difficulty breathing, or notice more than flecks of blood in your phlegm. It is normal to cough up a small amount of blood for 1 to 2 days after the procedure.

Your blood pressure, pulse and breathing rate will be checked prior to your discharge. The needle in your vein will be removed, and a chest X-ray may be taken.

You cannot eat or drink anything for two hours after the procedure because your throat may still be numb. For a child, however, the doctor may want to see that the child can drink liquid before going home.

Your physician will be happy to discuss any questions you may have regarding the examination and will tell you when to expect a report of the test results. Sometimes it takes a few days to a week for the results to come back from the laboratory.

Your physician may speak with you about additional procedures, which may be done in conjunction with bronchoscopy, to address specific problems in your airways. Please make sure you understand the specific indications, risks and benefits of any additional procedures. In adults, these may include procedures such as tumor ablation (photodynamic therapy, cryotherapy, cautery, brachytherapy) or tracheobronchial stenting. In children, the doctor may rinse the lungs with a small amount of liquid, or, rarely, take a sample of lung tissue.

If you have any questions or problems after your bronchoscopy, call your health care professional.



The publication’s content does not replace professional medical care and physician advice, which always should be sought. Medical treatments vary based on individual facts and circumstances. The information provided herein is not intended to be medical advice. The American College of Chest Physicians specifically disclaims all responsibility for any liability, loss or risk, personal or otherwise, which is incurred as a consequence, directly or indirectly, of the use and application of any of the material herein.

This program is supported by an educational grant from Olympus America, Inc.


The American College of Chest Physicians is the leading resource for the improvement of cardiopulmonary health and critical care worldwide. Its mission is to promote the prevention and treatment of diseases of the chest through leadership, education, research and communication.

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