Maryville Patho NURS 611 Exam 2. dr.
wunderlich
autonomic hyperreflexia - Answer-affected at the t5-t6 level or above; 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
what are common risk factors for stroke - Answer-arterial HTN, insulin resistance and
DM, elevated cholesterol or low high density lipoprotein (HDL), elevated lipoprotein- A
level, hyperhomocysteinemia, congestive heart disease and PVD, asymptomatic carotid
stenosis, polycythemia and thrombocythemia, a-fib, postmenopausal hormone therapy,
high sodium intake above 2300mg, low potassium intake less than 4700mg, smoking,
lack of physical activity, obesity, chronic sleep deprivation
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
Alzheimer's disease - Answer-leading cause of dementia and one of the most common
causes of severe cognitive dysfunction in older adults
what are the greatest risk factors for Alzheimer's disease - Answer-age, family history
what are the proposed protective factors for Alzheimer's disease - Answer-low calorie
diets, estrogen replacement at time of menopause, NSAIDs, physical activity,
antioxidants, the presence of apoE2
what genetic susceptibility tests are used to screen for early-onset AD - Answer-PSEN 1
(presenilin) on chromosome 14, PSEN 2, and APP (amyloid precursor protein) on
chromosome 21
When can a specific diagnosis of AD be given - Answer-postmortem examination
, what is the single greatest risk factor for stroke - Answer-hypertension (87% of
occurrences)
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)
which autoimmune disease typically presents 2-4 weeks following a bacterial/viral
infection such as respiratory or GI illness (ex: flu) - Answer-Guillain-Barre syndrome
Describe the progression of Guillain-Barre symptoms - Answer-typical first
manifestations are numbness, pain, paresthesias, or weakness in the limbs.
Paresis/paralysis may present in an ascending pattern
when can improvement be expected with Guillain-Barre - Answer-weakness usually
plateaus or improves by the 4th week in 90% of cases
Myasthenia Gravis - Answer-a chronic autoimmune disease that is mediated by Ach
receptor antibodies that act at the neuromuscular junction. The antibodies prevent
normal reception for muscle contraction
myasthenia gravis clinical manifestations - Answer--exertional fatigue and weakness
that worsens with activity, improves with rest, and recurs with resumption of activity
-a recent history of recurring upper resp tract infections
-diplopia, ptosis, and ocular palsies
-facial droop and an expressionless face; difficulty chewing and swallowing associated
with dietary changes and weight loss; drooling
-episodes of choking and aspiration
wunderlich
autonomic hyperreflexia - Answer-affected at the t5-t6 level or above; 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
what are common risk factors for stroke - Answer-arterial HTN, insulin resistance and
DM, elevated cholesterol or low high density lipoprotein (HDL), elevated lipoprotein- A
level, hyperhomocysteinemia, congestive heart disease and PVD, asymptomatic carotid
stenosis, polycythemia and thrombocythemia, a-fib, postmenopausal hormone therapy,
high sodium intake above 2300mg, low potassium intake less than 4700mg, smoking,
lack of physical activity, obesity, chronic sleep deprivation
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
Alzheimer's disease - Answer-leading cause of dementia and one of the most common
causes of severe cognitive dysfunction in older adults
what are the greatest risk factors for Alzheimer's disease - Answer-age, family history
what are the proposed protective factors for Alzheimer's disease - Answer-low calorie
diets, estrogen replacement at time of menopause, NSAIDs, physical activity,
antioxidants, the presence of apoE2
what genetic susceptibility tests are used to screen for early-onset AD - Answer-PSEN 1
(presenilin) on chromosome 14, PSEN 2, and APP (amyloid precursor protein) on
chromosome 21
When can a specific diagnosis of AD be given - Answer-postmortem examination
, what is the single greatest risk factor for stroke - Answer-hypertension (87% of
occurrences)
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)
which autoimmune disease typically presents 2-4 weeks following a bacterial/viral
infection such as respiratory or GI illness (ex: flu) - Answer-Guillain-Barre syndrome
Describe the progression of Guillain-Barre symptoms - Answer-typical first
manifestations are numbness, pain, paresthesias, or weakness in the limbs.
Paresis/paralysis may present in an ascending pattern
when can improvement be expected with Guillain-Barre - Answer-weakness usually
plateaus or improves by the 4th week in 90% of cases
Myasthenia Gravis - Answer-a chronic autoimmune disease that is mediated by Ach
receptor antibodies that act at the neuromuscular junction. The antibodies prevent
normal reception for muscle contraction
myasthenia gravis clinical manifestations - Answer--exertional fatigue and weakness
that worsens with activity, improves with rest, and recurs with resumption of activity
-a recent history of recurring upper resp tract infections
-diplopia, ptosis, and ocular palsies
-facial droop and an expressionless face; difficulty chewing and swallowing associated
with dietary changes and weight loss; drooling
-episodes of choking and aspiration
