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Maryville Patho NURS 611 Exam 2 Questions and Complete Solutions Graded A+
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Maryville Patho NURS 611 Exam 2 Questions and Complete Solutions Graded A+
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Maryville PathoNURS 611 Exam 2
Questions and
Complete Solutions
Graded A+
Denning [Date] [Course title]
, Which body system is responsible for conserving energy and body resources - Answer: Parasympathetic
nervous system
which system responds to stress by preparing the body to defend itself - Answer: Sympathetic nervous
system (SNS)
how is blood flow redistributed by the sympathetic nervous system (SNS) - Answer: blood flow to the
muscles is increased while blood flow to GI and integumentary is decreased
how are primary brain injuries classified - Answer: focal or diffuse (aka multifocal)
focal brain injuries - Answer: specific, grossly observable brain lesions that occur in a precise location
Epidural and subdural hemorrhages
diffuse brain injuries - Answer: include brain injury due to hypoxia, meningitis, encephalitis, and damage
to blood vessels
The brain is confined in a limited space so increased pressure can cause collateral dysfunction: Diabetes
Insipidus (ADH not secreted thus polyuria)
autonomic hyperreflexia - Answer: characterized by paroxysmal HTN (up to 300 mmHg systolic), a
pounding headache, blurred vision, sweating above the level of the lesion with flushing of the skin, nasal
congestion, nausea, piloerection caused by pilomotor spasm, and bradycardia (30-40 beats/min)
location of lesions in cases of autonomic hyperreflexia - Answer: individual most likely to be affected
have lesions at the T5-T6 level or above
sequence of events that lead to hyperreflexia induced bradycardia - Answer: bradycardia (30-40bpm) is
a sx of hyperreflexia
Stimulation of the carotid sinus -->vagus nerve -->sinoatrial (SA) node. The intact ANS reflexively
responds with an arteriolar spasm that increases blood pressure. Baroreceptors in the cerebral vessels,
the carotid sinus, and the aorta sense the HTN and stimulate the PNS. The heart rate decreases, but the
visceral and peripheral vessels do not dilate because efferent impulses cannot pass through the cord
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