EBUS and ENB Testing

Endobronchial Ultrasound (EBUS) is an exam performed to help diagnose problems in lymph nodes, nodules or a mass in the lung. A thin scope called an EBUS is pass through your airways into your chest. The EBUS has  a light with camera and an ultrasound at its tip. The ultrasound finds the lymph nodes, nodule or mass and a needle is used to obtain a biopsy. Multiple lymph nodes may be biopsied during this procedure.

Navigational Bronchoscopy (ENB) enables your doctor to obtain biopsy samples from a lung nodule that is beyond the reach of EBUS or traditional Bronchoscopy. It has a lower risk for complications and is less invasive than an open surgical biopsy or CT-guided biopsy. It also allows the doctor to place markers, if needed, to use as targets for radiation therapy. ENB is often used in conjunction with EBUS.

Your procedure should take 2-2.5 hours. After the procedure, you’ll go to the recovery room and usually will go home the same day.

Important Note:  you must have someone to drive you home after the procedure.

An anesthesiologist will sedate you and you will have a tube placed into your airways to help you breathe. Being deeply sedated for this procedure makes it more comfortable for you and it allows the doctor to obtain good biopsy samples.

Special Preparations (day of the test):

  • Nothing to eat or drink after midnight
  • Medications: 
    • You will be able to take most of your medications the morning of your procedure with a small sip of water. You will be instructed by your medical team which of your medications, if any, should not be taken the morning of your procedure.
    • Do NOT take any medications containing aspirin, ibuprofen, naproxen or other non-steroidal anti-inflammatory medications for 5 days prior to your procedure (these medications have blood thinning properties). You MAY take Tylenol for pain.
    • If you are taking warfarin, or an antiplatelet aggregation medication (Plavix, Effient, etc.), your doctor will instruct you on when your last dose before your procedure date will be.
    • If you are taking insulin or other diabetic medications you will be instructed on dose adjustments to accommodate not being able to eat for several hours before your procedure.


If your test is at the CPC (Comprehensive Procedure Center):

You will want to park in the West Garage. Follow signs to the Green elevator and take the elevator to the first floor. Go to the CPC Check-in desk at Central Registration. Take the Green elevator to the 4th floor and use the phone in the waiting room to call the nurse’s desk at 425.899.2367 to let them know you have completed registration.

If your test is in the Operating Room:

You will want to park in the Central Garage. Upon entering the medical center, take the escalator down to the first floor and walk to the left through the Galleria. Just past Diagnostic Imaging, take the Blue elevator to the 3rd floor. Register at the Surgical Registration Desk.

Results of the procedure:

There may be some preliminary results available when the procedure is finished. Other results can take several days to a week to be complete.

An office visit will be scheduled for you when your procedure is scheduled to review the final results with your provider.