Neuro Flashcards

1
Q

best way to prevent a neural tube defect

A

folic acid

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2
Q

2 types of neural tube defects

A

posterior and anterior

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3
Q

posterior defects (2)

A

anencephaly

myelodysplasias - closure of neuro tube in back

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4
Q

anterior mid-line defect of neural tube

A

cyclopia - rarely survive; 1 hr post birth at most/stillborn

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5
Q

neural tube defects are defects of what

A

spine

brain

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6
Q

most common neural tubal defects

A

spina bifida

anencephaly

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7
Q

whose affected more with neural tube deficits

A

white girls

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8
Q

risk factors for neural tube defects

A
hereditary
maternal obesity
advanced maternal age
zinc deficiency during preg
anti-convulsion therapy
lower socioeconomic classes
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9
Q

when do neural tubal defects develop

A

between 17 and 30 days after conception

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10
Q

anencephaly manifestations

A

the upper portion of the neural tube doesn’t close

brain doesn’t fully develop (cerebral hemispheres)

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11
Q

spina bifida manifestations

A

the lower sacral area the neural tube doesn’t close properly

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12
Q

lifespan with anencephaly

A

stillborn or a few hours of life

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13
Q

encephalocele manifestations

A

brain is more posterior - parts of the brain live in a sac outside of the skull

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14
Q

lifespan with encephalocele

A

they live, with ID - varying degrees

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15
Q

2 types of spina bifida

A

spina bifida cystica (more severe form)

spina bifida occulta

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16
Q

which spina bifida is the more severe form

A

spina bifida cystica

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17
Q

what else can develop as a result of spina bifida cystica (2 versions)

A

meningocele - neural tube hasn’t closed- sac on the back containing cerebral spinal fluid and may contain meninges
meningomyelocele - contains part of spinal cord, meninges and cerebral spinal fluid

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18
Q

manifestation of spina bifida occulta

A

no opening on back
no sac
neural tube isn’t completely closed, remains open; but no damage to meninges or spinal cord
may have tuft of hair or dimple

19
Q

manifestations of meningocele

A

cerebral spinal fluid filled sac on the back - protect the sac

20
Q

least common form of spina bifida

A

meningocele

21
Q

myelomeningocele manifestations

A

some degree of paralysis
nerve damage
spinal cord and meninges are pushed out through opening in the back
placed on bowel/bladder mgmt

22
Q

most severe and frequent form of spina bifida

A

myelomeningocele

23
Q

those with myelomeningocele are more likely to have an allergy to latextrue or false

24
Q

it is not uncommon for those with myelomeningocele to have an associated hydrocephaly, true or false

25
is there a cure for spina bifida
no, prevent
26
hydrocephalus is not
water on the brain | its cerebral spinal fluid
27
cause of hydrocephalus
congenital | acquired (shaking baby)
28
pathology of hydrocephalus
production of cerebral spinal fluid with decreased absorption
29
hydropcephalus has 2 categories
communicting | non-communicating
30
communicting hydropcephalus
interruption between production to absorption | inadequate absorption of fluid when ventricular pathways are not obstructed
31
non communicating hyrdopchephalus
obstruction/stenosis/tumor from point of production to absorption
32
what helps determine hydrocephalus
occiptial head circumference
33
functions of cerebral spinal fluid
protection buoyancy excretion of waste products endocrine medium for the brain
34
cerebral spinal fluid is always in constant state of flowing through brain and spinal cord, t or f
true
35
absorption of cerebral spinal fluid into the blood takes place through
arachnoid villi
36
structure that produces cerebral spinal fluid
choroid plexus
37
structure that allows absorption cerebral spinal fluid
subarachnoid space
38
s/s of hydrocephalus
frontal bossing - elongated sunset eyes - low high pitched cry scalp veins prominent
39
procedure that can be done for hydrocephaly
third ventricular cisternostomy | shunt
40
2 risks r/t shunt for hydrocephaly
infection | obstruction
41
reye syndrome correlation
associated with ASA ingestion
42
reye syndrome effects
brain and liver
43
22;46
1:27;27