what are the characteristics of comatose patients?

coma is a pathological state in which brain function is highly suppressed. the patient's ability to respond to internal and external environmental stimuli decreases or disappears. the main characteristics are disturbance of consciousness, loss of voluntary movement, unresponsiveness to external stimuli or pathological reflex activities, but life the signs are still there. the following are the characteristics of coma:

1. priority of onset: acute onset is more common in poisoning, trauma, hypoglycemia, acute cerebrovascular disease, aspen syndrome, etc. gradual onset is more common in metabolic encephalopathy, poisoning, central nervous system infection, etc.; chronic onset should consider intracranial space-occupying factors. lesions; epidural hematoma is more common in people who become comatose after waking up.

2. accompanying symptoms: those with meningeal irritation are commonly seen in meningitis, subarachnoid hemorrhage, cerebral hemorrhage, etc.; those with convulsions can be seen in hypertensive encephalopathy, cerebral hemorrhage, epilepsy, cerebral hypoxia, etc.; those with hemiplegia are seen in cerebral hemorrhage stroke, brain trauma, etc.; those with increased intracranial pressure are seen in cerebral hemorrhage, tumors, hematoma and cerebral edema, etc.

3. past history: whether there is a history of heart, liver, kidney, lung, etc.; whether there is a history of diabetes, hypertension, hypoglycemia, etc.

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