What makes up the autonomic nervous system? Right Ans - Sympathetic
and parasympathetic nervous system
What is the parasympathetic nervous system responsible for? Right Ans -
Conserving energy and the body's resources
What is the sympathetic nervous system responsible for? Right Ans -
Catecholamine release - Epinephrine
Mobilizing energy stores and decreasing release of insulin
Redistributing blood low - Increasing to muscles and lungs (flight) and
decreasing to GI/Integumentary
What are the classifications of primary brain injury? Right Ans - Focal or
diffuse
What are focal brain injuries? Right Ans - Specific, grossly observable
lesions that occur in a precise location
What are examples of focal brain injuries? Right Ans - Epidural
hemorrhage and subdural hemorrhage
What are examples of diffuse brain injuries? Right Ans - Hypoxia,
meningitis, encephalitis, and damage to blood vessels
What can happen with increased intracranial pressures? Right Ans -
Collateral dysfunction such as Diabetes Insipidus
What are characteristics of autonomic hyperreflexia? Right Ans -
Paroxysmal hypertension, pounding headache, blurred vision, sweating above
level of lesion with flushing of skin, nasal congestion, nausea, piloerection
causes by pilomotor spasm, and bradycardia.
What is the sequence of events leading to hyperreflexia induced bradycardia?
Right Ans - Stimulation of the carotid sinus nerve to the sinoatrial nose
, The intact autonomic nervous system reflexively responds with arteriolar
spasm that increases blood pressure
Baroreceptors in the cerebral vessels, carotid sinus, and aorta sense the
hypertension and stimulation the parasympathetic nervous system
The heart rate decreases, but the visceral and peripheral vessels do not dilate
because efferent impulses cannot pass through the cord
What are the onset of delirium and dementia? Right Ans - Delirium - acute
and common during hospitalization
Dementia - usually insidious and can be acute in situations such as trauma or
stroke
What conditions are associated with delirium? Right Ans - UTI, thyroid
disorders, hypoxia, hypoglycemia, toxicity, fluid-electrolyte imbalance, renal
insufficiency, trauma, multiple medications
What conditions are associated with dementia? Right Ans - May have no
other conditions
What is the course of delirium? Right Ans - Fluctuates and remits with
treatment
What is the course with dementia? Right Ans - chronic slow decline
What is the duration of delirium? Right Ans - Hours to weeks
What is the duration of dementia? Right Ans - Months to years
What sleep-wake cycle is noted with delirium? Right Ans - disrupted
What sleep-wake cycle is noted with dementia? Right Ans - Usually normal
or frgmented
What is the alertness and orientation with delirium? Right Ans - impaired
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