Intubation is a medical procedure in which a healthcare provider places a flexible plastic tube through your mouth or nose and down into your windpipe to keep your airway open. The tube connects to a ventilator or oxygen supply, ensuring air reaches your lungs when you can’t breathe adequately on your own. It’s one of the most common life-saving procedures performed in hospitals, used during surgery, in emergencies, and in intensive care units.
Why Intubation Is Performed
The core purpose of intubation is straightforward: keeping the airway open so oxygen can get into the lungs. Your body may need this help in several situations. During general anesthesia for surgery, the medications that put you to sleep also relax the muscles that keep your airway open, so a breathing tube maintains that passageway while you’re unconscious.
In emergency settings, intubation is performed when someone has severe breathing difficulty, low oxygen levels, or a reduced level of consciousness. Trauma patients who score 8 or below on the Glasgow Coma Scale (a 15-point scale measuring responsiveness) generally need intubation because they can’t protect their own airway. Other reasons include respiratory failure from pneumonia or lung disease, drug overdoses that suppress breathing, severe allergic reactions causing airway swelling, and smoke inhalation injuries.
What Happens During the Procedure
Before the tube goes in, the medical team gives you medications through an IV to make the process safe and painless. In emergencies, this typically involves two types of drugs given almost simultaneously: one to put you into a deep sleep so you’re completely unaware, and another to temporarily relax your muscles so the jaw and vocal cords don’t resist the tube. The muscle relaxant takes effect within 30 to 60 seconds.
Once the medications take effect, the provider tilts your head back slightly and uses a lighted instrument called a laryngoscope to see past your tongue and locate the opening to your windpipe. The breathing tube is then guided between your vocal cords and into the trachea. The entire process takes less than a minute in most cases. After placement, a small balloon near the tip of the tube is inflated to create a seal inside the windpipe, preventing air leaks and keeping fluids out of the lungs. The tube is then secured with tape or a holder and connected to a ventilator.
Oral vs. Nasal Intubation
Most intubations are done through the mouth (orotracheal intubation) because it’s faster and allows for a larger tube. In some cases, though, the tube is placed through the nose instead (nasotracheal intubation). Nasal tubes are sometimes used for patients who need longer-term ventilation, for certain jaw or mouth surgeries, or when oral placement isn’t possible.
Research comparing the two approaches in ICU patients found some notable differences. Patients with nasal tubes required less sedation and were more alert, spending roughly 9.4 hours per day at a calm, wakeful state compared to just 4 hours per day for those with oral tubes. The nasal tube group also breathed more on their own from day one through day seven and showed better mobility during physical therapy sessions. Oral intubation, however, remains the default in emergencies because it’s quicker to perform.
Risks and Side Effects
Intubation is generally safe, but having a rigid tube sitting in a delicate airway does carry risks, even when everything goes correctly. The most common aftereffects are a sore throat, hoarseness, and cough after the tube is removed. These typically resolve within a few days. Some people experience difficulty swallowing or a sensation of something stuck in their throat for a short period afterward.
More serious complications are less common but can occur, particularly with prolonged intubation. The pressure from the tube and its inflated cuff against the tracheal lining can cause irritation, swelling, or in rare cases, damage to the vocal cords. Vocal cord paralysis is a recognized complication, as is narrowing of the airway (stenosis) from prolonged pressure on the tissue. These risks increase the longer the tube stays in place.
One of the most significant concerns for patients on ventilators is pneumonia. Bacteria can travel along the tube into the lungs, causing what’s known as ventilator-associated pneumonia. Reported rates vary widely, from 4% to 42% of ventilated patients depending on how it’s diagnosed and where the study was conducted. It’s a serious complication with high mortality rates, which is one reason medical teams work to remove the breathing tube as soon as safely possible.
How Long Intubation Lasts
The duration varies enormously depending on the reason. For a routine surgery, the tube may be in place for just 30 minutes to a few hours. In the ICU, patients with severe illness or injury may remain intubated for days or even weeks. When mechanical ventilation is expected to last beyond about 10 to 14 days, doctors often discuss switching to a tracheostomy, a surgically created opening in the neck that bypasses the mouth and throat entirely. International guidelines have historically recommended considering tracheostomy after 21 days of ventilation, but current practice often moves toward that decision between 7 and 15 days if the patient isn’t improving.
Getting the Tube Removed
Removing the breathing tube, called extubation, isn’t as simple as just pulling it out. The medical team first needs to confirm that your lungs and breathing muscles can handle the work on their own. This usually involves a spontaneous breathing trial, where the ventilator support is reduced or turned off temporarily while staff monitor how well you breathe independently.
Several factors predict whether extubation will succeed. Patients who breathe at a comfortable rate (not too fast) during the trial tend to do well. Good oxygen levels in the blood and strong diaphragm movement, sometimes measured with ultrasound, are also positive signs. Shorter time on the ventilator is one of the strongest predictors of successful extubation. Patients who have been ventilated for a long time have weaker breathing muscles and face a higher risk of needing to be re-intubated.
After the tube comes out, you’ll likely have a sore, scratchy throat and a hoarse voice. Swallowing may feel uncomfortable for a day or two. Most people find these symptoms improve quickly, though patients who were intubated for extended periods may take longer to fully recover their voice and swallowing function.
What It Feels Like to Wake Up Intubated
If you wake up in the ICU with a breathing tube already in place, it can be disorienting and uncomfortable. You won’t be able to talk because the tube passes between your vocal cords. You may feel a gagging sensation or an urge to cough. Nurses and respiratory therapists will be nearby to explain what’s happening. Sedation is usually adjusted to keep you comfortable but as alert as your condition allows. Communication boards, hand signals, or writing tools are commonly used so you can express needs while the tube is in place.