Coma: a state of unconsciousness from which the patient cannot be aroused, even by powerful stimuli. Traumatic brain injuries are the most frequent cause; other causes include severe uncontrolled diabetes mellitus, liver disease, kidney disease, and neurologic conditions
Dementia: a general loss of mental abilities, including impairment of memory and often impairments in speech, coordination, ability to understand sensory stimuli, and other mental faculties. Many different conditions can cause dementia; some are reversible and some are progressive with widespread damage in the brain
Delirium: is an acute and debilitating decline in the ability to focus attention, perception, and cognition that produces...
Nội dung trích xuất từ tài liệu:
Mental Status Changes
Mental Status Changes
I. SOME DEFINITIONS
Coma: a state of unconsciousness from which the patient cannot be aroused, even
by powerful stimuli. Traumatic brain injuries are the most frequent cause; other
causes include severe uncontrolled diabetes mellitus, liver disease, kidney disease,
and neurologic conditions
Dementia: a general loss of mental abilities, including impairment of memory and
often impairments in speech, coordination, ability to understand sensory stimuli,
and other mental faculties. Many different conditions can cause dementia; some
are reversible and some are progressive with widespread damage in the brain
Delirium: is an acute and debilitating decline in the ability to focus attention,
perception, and cognition that produces an altered f orm of semi-consciousness. It
is a systemic syndrome caused by a chemical or disease-process which is
disrupting the neurons of the cerebral cortex. Though hallucinations and delusions
are often present, the symptoms of delirium are clinically distinct fro m those
induced by psychosis or hallucinogens.
Stroke Syndrom: a symptom complex caused by a disorder of the blood vessels
serving the brain, with impaired blood supply and ischemia. Symptoms depend on
the brain area affected, and may include paralysis eit her on one entire side of the
body or of a less complete area, vertigo, numbness, and aphasia. There are four
different events related to this condition: transient ischemic attack, reversible
ischemic neurologic deficit, stroke in evolution, and completed stroke. Persons
most at risk for stroke include those with hypertension, atherosclerosis, heart
disease, and other cardiovascular disorders. Obese persons, heavy smokers, and
those with diabetes mellitus are also at increased risk. The three main causes of
stroke syndrome, all associated with cerebral infarction (a necrotic area in the
brain tissue), are cerebral embolism, cerebral thrombosis, and cerebral
hemorrhage. Strokelike symptoms may also be caused by compression of cerebral
vessels (such as by a tumor or edema) and by arterial spasm. Called also stroke
and cerebral vascular or cerebrovascular accident.
Mental Status: , describes induced changes in one's mental state, almost always
temporary, is any condition which is significantly different from a n ormal waking
beta wave state
II. Etiology
- Neurologic (stroke, delerium, )
- Metabolic: Hypoxemia, hypoglycemia
- Toxic: drug effect, alcohol
- Infection: Urinary tract infection, pneumonia. Infection is a common cause in
elderly and patients with underlying neurologic disease
III. DIAGNOSTIC
History: Underlying dementia, neurologic or psychiatric or history of alcohol or
drug uses
Physical Examination: P11 of Washington
Testing