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The unconscious patient 

The unconscious patient
The unconscious patient

David Bates

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date: 02 March 2021

Prolonged loss of consciousness (coma, defined as a Glasgow Coma Score of 8 or less) is seen commonly: (1) following head injury, (2) after an overdose of sedating drugs, and (3) in the situation of ‘non-traumatic coma’, where there are many possible diagnoses, but the most common are postanoxic, postischaemic, systemic infection, and metabolic derangement (e.g. hypoglycaemia). Urgent assessment is required to identify and, where possible, correct the pathological cause, and protect the brain from the development of irreversible damage. Specific treatment (if any) will depend upon the particular cause of coma, but—whatever the cause—long-term attention is required to the patient’s respiration, skin, circulation, and bladder and bowel function, seizures must be controlled, and the level of consciousness should be regularly assessed and monitored.

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