Pulmonary endoscopy or bronchoscopy is a procedure for lung or airway-related symptoms, such as persistent cough, coughing up blood, or difficulty breathing. This procedure lets your doctor see the airway of your lungs and take a tissue sample (biopsy) or treat a lung condition if needed.

A bronchoscopy lets the doctor look into the airways in your lungs. This is done using a bronchoscope. A bronchoscope is a thin, flexible, hollow, lighted tube with a small camera that lets the doctor see inside the lung. It's put through your nose or mouth, down your throat, and into your airways. Tools can be passed down the middle of the scope to collect tissue samples or remove any lumps or lesions.

This procedure is used mainly to take samples of tissue near the airway. It's done using a bronchoscope and tiny forceps. The forceps are passed through the scope into the airway, and a tissue sample is taken.

This is a type of bronchoscopy that looks at the lungs and the space between the lungs (mediastinum). This is done using a flexible bronchoscope and ultrasound. An ultrasound makes images using sound waves. These images guide the doctor and let them see through the airway walls.

Before your procedure, do the following:

• Follow any directions you're given about not eating or drinking before the procedure.
• Follow any other instructions from your doctor. You may need to have blood tests. Follow any directions for not smoking, vaping, or using other tobacco or nicotine products.
• Tell your doctor about all the medicines you take. This includes over-the-counter and prescription medicines, vitamins, herbs, and other supplements. You may need to stop taking some of them before the procedure, especially aspirin, warfarin, or other blood thinners. Ask your doctor what medicines to stop taking before the procedure.
• Talk with your doctor about any allergies and health problems you have.
• Tell your doctor if you're pregnant or think you could be pregnant.
• Tell your doctor if you're breastfeeding.
• Ask your doctor any questions you have about the procedure, risks, or recovery.

You'll get medicine through an I.V. (intravenous) line to help you relax and sleep during the procedure. You may also be given local anesthesia (numbing medicine) with a needle. Then a special spray is used to numb your throat and nose or mouth. This is to help keep you comfortable and prevent coughing during the procedure.

You will stay in the recovery room until the sedation wears off. This takes about 1 to 2 hours. Once you're fully awake, you can go home. You'll need an adult family member or friend to drive you home. You may have a cough, hoarse voice, or sore throat for 1 or 2 days. At first, there may be a small amount of blood in the saliva and mucus that you cough up (sputum). This is normal. It should go away after the second day.

Possible risks include:

• Bleeding
• Infection or pneumonia
• Injury to vocal cords
• Collapsed lung (pneumothorax)

Contact your doctor if you have any of the following:

• Large amounts of blood in sputum
• Blood in sputum after 2 days
• Shortness of breath
• Chest pain
• Fever of 100.4°F ( 38°C) or higher, or as directed by your doctor
• Hoarseness that won't go away
• Symptoms that get worse, or new symptoms