Life support in medicine is a broad term that applies to any therapy used to sustain a patient's life while they are critically ill or injured, as part of intensive-care medicine. There are many therapies and techniques that may be used by clinicians to achieve the goal of sustaining life. Some examples include:
- Feeding tube
- Total parenteral nutrition
- Mechanical ventilation
- Heart/Lung bypass
- Urinary catheterization
- Dialysis
- Cardiopulmonary resuscitation
- Defibrillation
- Artificial pacemaker
These techniques are applied most commonly in the Emergency Department, Intensive Care Unit and, Operating Rooms. As various life support technologies have improved and evolved they are used increasingly outside of the hospital environment. For example a patient who requires a ventilator for survival are commonly discharged home with these devices. Another example includes the now ubiquitous presence of Automated external defibrillator in public venues which allow lay people to deliver life support in a prehospital environment.
The ultimate goals of life support depend on the specific patient situation. Typically life support is used to sustain life while the underlying injury or illness is being treated or evaluated for prognosis. Life support techniques may also be used indefinitely if the underlying medical condition cannot be corrected but a reasonable quality of life can still be expected.
Famous quotes containing the words life and/or support:
“His life was gentle, and the elements
So mixed in him that nature might stand up
And say to all the world “This was a man.””
—William Shakespeare (1564–1616)
“Surely, ‘tis one step towards acting well, to think worthily of our nature; and as in common life, the way to make a man honest, is, to suppose him so ... so here, to set some value upon ourselves, enables us to support the character ... of generosity and virtue.”
—Laurence Sterne (1713–1768)