Coma Characteristics:

• No eye opening or movement
• No awareness of self or environment
• No ability to follow commands
• No response to voice or noxious stimuli
• No normal sleep-wake cycles

Prognosis:

• Depends on etiology of coma, age of patient, and severity of cause
• Coma rarely lasts > 2-4 weeks, unless sedated or has severe sepsis, as patient either recovers, dies or evolves to another LOC: minimally conscious state, persistent vegetative state, or brain death

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