What are commonly used life support measures?
- Artificial nutrition and hydration: Artificial nutrition and hydration (or tube feeding) adds to or replaces ordinary eating and drinking by giving a chemically balanced mix of nutrients and fluids through a tube placed directly into the stomach, the upper intestine, or a vein. Artificial nutrition and hydration can save lives when used until the body heals.
Long-term artificial nutrition and hydration may be given to people with serious intestinal disorders that weaken their ability to digest food, and helping them to enjoy a quality of life that is important to them. Long-term use of tube feeding frequently is given to people with irreversible and end-stage conditions. Often, the treatment will not reverse the course of the disease itself or improve the quality of life.
Some healthcare facilities and physicians may not agree with stopping or withdrawing tube feeding. Therefore, explore this issue with your loved ones and physician and clearly state your wishes about artificial nutrition and hydration in your advance directive.
- Cardiopulmonary resuscitation: Cardiopulmonary resuscitation (CPR) is a group of treatments used when someone's heart and/or breathing stops. CPR is used in an attempt to restart the heart and breathing. Electric shock and drugs also are used frequently to stimulate the heart.
When used quickly in response to a sudden event like a heart attack or drowning, CPR can be life saving. But the success rate is extremely low for people who are at the end of a terminal disease process. Critically ill patients who receive CPR have a small chance of recovering and leaving the hospital.
If you do not wish to receive CPR under certain circumstances, and you are in the hospital, your doctor must write a separate do-not-resuscitate (DNR) order in your medical record. If you are at home, some states, including Ohio, allow for an out-of-hospital or portable DNR order. This order is written by a physician and directs emergency workers not to start CPR.
- Mechanical ventilation: Mechanical ventilation is used to support or replace the function of the lungs. A machine called a ventilator (or respirator) forces air into the lungs. The ventilator is attached to a tube inserted in the nose or mouth and down into the windpipe (or trachea).
Mechanical ventilation often is used to help a person through a short-term problem, or for prolonged periods in which irreversible respiratory (breathing) failure exists because of injuries to the upper spinal cord or a progressive neurological disease. Some people on long-term mechanical ventilation are able to live a quality of life that is important to them. For a dying patient, however, mechanical ventilation often merely extends the dying process until some other body system fails. It may supply oxygen, but it cannot improve the underlying condition.
When discussing end-of-life wishes, make clear to loved ones and your physician whether you would want mechanical ventilation if you would never regain the ability to breathe on your own or return to a quality of life acceptable to you.
- Kidney dialysis: Kidney dialysis is a life-support treatment that uses a special machine to filter harmful wastes, salt and excess fluid from your blood. This restores the blood to a normal, healthy balance. Dialysis replaces many of the kidneys’ important functions for people whose kidneys have stopped working properly.
Dialysis is not a cure for kidney failure. If your kidneys do not work and you stop dialysis, your kidneys will continue to fail. You cannot live without at least one functioning kidney, unless you get a kidney transplant.
For many people, the benefits of dialysis and the quality of life they experience as a result, outweigh the burdens of dialysis. But for some people, the opposite is true – the burdens of dialysis outweigh the benefits, especially if they have a terminal condition in addition to kidney failure. When discussing end-of-life issues, make clear to your loved ones and your physician whether you would want kidney dialysis, especially if it would not provide you with a quality of life acceptable to you or if it would only prolong your dying.