Therapy
Mechanical Ventilation
Mechanical ventilation uses a machine to help or take over a person’s breathing when they cannot breathe adequately on their own.
Quick answer
Mechanical Ventilation: what it is, why it's done and what happens
Mechanical ventilation delivers air and oxygen to the lungs through a machine (ventilator), usually via a tube in the windpipe, supporting or fully taking over breathing while the underlying problem is treated.
- Why it is done: It is used in serious illness or injury when breathing fails or is not enough — for example in severe pneumonia, after major surgery, in some poisonings, or with certain neurological or lung conditions.
- What happens: A tube is passed into the windpipe (intubation), usually with sedation, and connected to the ventilator, which is carefully adjusted.
What it is
Mechanical ventilation delivers air and oxygen to the lungs through a machine (ventilator), usually via a tube in the windpipe, supporting or fully taking over breathing while the underlying problem is treated.
Why it is done
It is used in serious illness or injury when breathing fails or is not enough — for example in severe pneumonia, after major surgery, in some poisonings, or with certain neurological or lung conditions.
What happens
A tube is passed into the windpipe (intubation), usually with sedation, and connected to the ventilator, which is carefully adjusted. Longer-term ventilation may use a tracheostomy. It is managed in intensive care.
Recovery
As the person improves, ventilator support is gradually reduced (weaning) until they can breathe on their own and the tube is removed. Recovery of strength and breathing can take time, sometimes with rehabilitation.
Good to know
Risks and things to consider
Risks include lung infection (ventilator-associated pneumonia), lung injury from pressure, and problems from sedation and immobility. It supports breathing while treatment works but does not itself cure the cause.
Education and reference only. This explains the procedure in general terms and is not medical advice. Your own care, risks and recovery will be explained by the team looking after you.
Answers
Mechanical Ventilation: frequently asked questions
Is being on a ventilator the same as being on life support?
Mechanical ventilation is one form of life support, taking over breathing. Life support can also include other measures such as supporting the heart or kidneys, depending on what the person needs.
What does “weaning” from a ventilator mean?
Weaning is the gradual process of reducing ventilator support as the person recovers, allowing them to take over their own breathing before the tube is removed.
Related
Other therapy
Sources
Where this is drawn from
- NHS — Tests and treatments
- NICE — procedure and treatment guidance
- Relevant Royal College / professional body
Building patient-education content for procedures?
We create clear, accurate, referenced medical explainers and decision aids for teams and learners.