what is the difference between whole brain death and persistent vegetative state?
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Persistent vegetative state differs from whole brain-death in that patients who are brain dead have absolutely no observable function or reflexes of the do not breathe autonomously, and have no chance of recovery.
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Prognosis. Comas can last from several days to several weeks. In more severe cases a coma may last for over five weeks, while some have lasted as long as several years. After this time, some patients gradually come out of the coma, some progress to a vegetative state, and others die.
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Critical but stable - vital signs are within normal limits. The patient is stable but may be unconscious. Their condition is life threatening. Critical – injury or illness is life threatening.
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In addition, when a person is closer to death, the hands, arms, feet, or legs may be cool to the touch. Some parts of the body may become darker or blue-colored. Breathing and heart rates may slow. In fact, there may be times when the person's breathing becomes abnormal, known as Cheyne-Stokes breathing.
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Life- the period of time were a person is alive, experience of being alive. Death- the end of life: the time were someone or something dies. ... Soul is always alive, there is no death for it. It is the body which dies when the soul leaves it.
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Command Information and Syntax God mode makes you invincible to most forms of damage. You can still die via drowning when in god mode, so if you do not wish to drown, you will need to use the InfiniteStats command.
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Usually, a coma does not last more than a few weeks. Sometimes, however, a person stays in a coma for a long time — even years — and will be able to do very little except breathe on his or her own. Most people do come out of comas.
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When death occurs, the person stops breathing. There is no heartbeat and no response. The eyes and mouth are slightly open and may be gently closed.
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Biological Death versus Clinical Death The first stage is called Clinical Death. Clinical death is not necessarily permanent. An individual's brain can stay alive for about 4-6 minutes after breathing and heartbeat have stopped.
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In a vegetative state the person is still unconscious. They have no awareness of themselves or their environment. The main difference between 'coma' and the 'vegetative state' is that at some point the person's eyes will be open and there will be times when they seem to be 'awake'.
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Intensive medical support is usually withdrawn. In contrast, the diagnosis of brain death depends on death of the brainstem, while PVS implies permanent and total loss of forebrain function. While brainstem death can be diagnosed clinically, accurate prognosis in PVS requires additional investigation.
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However, just like patients administered anesthesia there is actually a continuum of consciousness in “coma”. ... The long time thinking is that when a person is comatose then they are completely unaware and therefore not sentient.
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The body of a brain-dead person is usually not supported for very long, Greene-Chandos said. Doctors sometimes provide support (in the form of a ventilator, hormones, fluids, etc.) for several days if the organs will be used for donation, or if the family needs more time to say good-bye, Greene-Chandos said.
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Brain cells are very sensitive to a lack of oxygen. Some brain cells start dying less than 5 minutes after their oxygen supply disappears. As a result, brain hypoxia can rapidly cause severe brain damage or death.
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When someone is choking with a completely blocked airway, no oxygen can enter the lungs. The brain is extremely sensitive to this lack of oxygen and begins to die within four to six minutes. It is during this time that first aid must take place. Irreversible brain death occurs in as little as 10 minutes.
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But you may survive for as long as 1 or 2 weeks. When you're unconscious or not of sound mind, doctors and family members will decide when life support measures should stop. It's a hard decision, especially if you haven't previously discussed your end-of-life wishes with your family.
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When sudden cardiac arrest occurs, reduced blood flow to your brain causes unconsciousness. If your heart rhythm doesn't rapidly return to normal, brain damage occurs and death results.