What a Ventilator Actually Does

A ventilator is a machine that helps you breathe when your lungs cannot do the job on their own. It pushes oxygenated air into your lungs through a tube placed in your windpipe, known as intubation. The machine regulates how much air you receive and how often you get a breath. It keeps your oxygen levels stable while your body fights an illness or recovers from surgery.

Your lungs are delicate, and the ventilator must be carefully calibrated to avoid injury. Doctors set specific limits for tidal volume, which is the amount of air moved in and out of your lungs during each breath. We also monitor peak airway pressure to ensure the machine is not forcing air in with too much intensity. Constant sensors track these levels to prevent damage to your lung tissue.

To connect you to the machine, we insert an endotracheal tube through your mouth and down into your trachea. This tube keeps your airway open and allows the ventilator to deliver air directly to your lungs. Because the tube sits between your vocal cords, you cannot speak while it is in place. We use mild sedation to keep you comfortable and to prevent you from accidentally pulling the tube out.

Our primary goal is to help you breathe independently as soon as it is safe. We perform daily assessments to see if your lungs are strong enough to handle the workload. This process, called weaning, involves gradually reducing the machine's support so your muscles can take over. Once your blood oxygen levels remain steady without assistance, we remove the tube.