Is a coma the only state of impaired consciousness?

Diana Meeks
Diana Meeks on behalf of Sigma Nursing
Family Practitioner

A coma is a state of complete unconsciousness in which the person cannot be aroused. There are, however, varying states of impaired consciousness ranging from lethargy brought on by fever or illness, to coma, a state of total unresponsiveness. Stupor is a sleeplike condition requiring extreme shaking and stimulation for a response. Obtundation, like lethargy, refers to a state of cloudy thinking and reduced alertness but no loss of consciousness.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.