2 Flashcards

1
Q

Most common origination site of IVH in infants?

A

germinal matrix hemorrhages. This increases the risks of motor and ID down the line.

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2
Q

What motor protein is responsible for fast anterograde transport?

A

kinesin

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3
Q

How do you calculate sleep restriction therapy time for patients with insomnia?

A

Calculate mean time in bed, and then mean sleep time over 1-2 weeks. Then restrict sleeping time to the mean sleep time, but not less than 5 hours.

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4
Q

gingival hyperplasia is caused by what ASM?

A

phenytoin

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5
Q

If patients on sleep restriction therapy have sleep efficiency >/< what level to make changes?

A

> 85% = inc time in bed by 15 mins for next 7 days

<80% - dec time in bed by 15 mins

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6
Q

Which allele is assoc with a lower risk of AD?

A

APOE2

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7
Q

What changes in rem sleep latency during schizophrenic episode?

A

REM sleep latency decreases

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8
Q

CYP inhibitors?

A

depakote, fluoxetine, sertraline, fluvoxamine

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9
Q

CYP inducers?

A

phenobarbital, carbamazepine, phenytoin, rifampin

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10
Q

Which brain structure is assoc with generalized anxiety disorder?

A

amygdala

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11
Q

triad of congenital toxoplasmosis?

A

hydrocephalus
chorioretinitis
intracranial calcifications

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12
Q

Cheyne strokes breathing is associated with a lesion where?

A

medulla

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13
Q

Symptoms for narcolepsy must occur at what frequency to meet criteria?

A

3x/ week for at least 3 months

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14
Q

Cause of congenital hypoventilation syndrome?

A

Trinucelotide repeats in PHOX2B gene, which contributes to normal autonomic nervous system development

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15
Q

Definitions of positive reinforcement/punishment, negative reinforcement/punishment?

A

Pos reinforcement: addition of a desirable stimulus to inc a behavior
Pos punishment: addition of an undesirable stim to inc a behavior
Neg reinforcement: removal of a undesirable stim to inc a behavior
Neg punishment: removal of a desirable stim to decrease behavior

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16
Q

most common side effects of mirtazapine

A

inc appetite, weight gain, dry mouth and somnolence

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17
Q

difference is pathophys between congenital MG and autoimmune MG

A

autoimmune = ABs against Ach receptors
Congenital= mutation in nAch receptors

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18
Q

PD affects more the substantia nigra pars compacta/reticulata?

A

Compacta: Affected more in PD
Reticulata: serves mainly input, from BG to other brain structures. It is GABAergic.

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19
Q

Most common side effect of ECT

A

anterograde amnesia

not permanent but can last a few days

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20
Q

MOA of mirtazapine

A

antagonist at pre-synaptic alpha-2 adrenergic receptors, with post-synaptic antagonist at 5HT2, 5HT3, H1 receptors.

basically SNRI with a little H1 blocking also.

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21
Q

Drugs for Tourette’s Syndrome

A

ariprazole, haloperidol, pimozide are FDA approved, however guanfacine and clonidine are used as first line (not FDA approved) given their lower side effect profile.

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22
Q

Triad of congenital toxo?

A

hydrocephalus
chorioretinitis
intracranial calcifications

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23
Q

ECT can be used in schizophrenia particularly for ?

A

Catatonia

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24
Q

tumors with …. stain positive for GFAP?

A

astrocyte origin

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25
cytokeratin usually stains positive for?
metastatic tumors
26
HIV associated neuropathy is often?
distal symmetric axonal polyneuropathy
27
criteria for depression with atypical features?
28
Stages of grief?
Denial Anger Bargaining Depression Acceptance
29
mutation in which gene is assoc with predisposition to develop statin induced myopathy?
SLCO1B
30
infant with normal development with subsequent regression in a female is?
Rett Syndrome: MEPC2 gene mutation on X chromosome involved in MEthyl CPg binding protein 2
31
Fragile X mutation
CGG repeat on FMR1 gene
32
What are cortical tubers in tuberous sclerosis?
cortical hamartomas
33
Tay Sachs Disease GM2 gangliosidosis Types?
Tay Sachs Disease is GM2 gangiosidosis type A: purely CNS and due to hexosaminidase A def. Sandoffs Disease is due to deficiency of type A and type B: CNS + hepatosplenomegaly
34
cherry red spot?
sialidosis tay sachs niemann pick
35
Involvement of U fibers
alexander disease: megalencephaly due to GFAP mutation canavan's disease: megalencephaly due to N-acetylaspartic acid peak (asprtoacyclase deficiency)
36
sparing of U fibers
adrenoleukodystrophy: ABCD1 mutation causing inc of VLCFA Krabbe: galactocerebrosidase deficiency Metachromatic leukodys.: deficiency of lysosomal aryl sulfatase
37
Syneuclinopathies vs Tauopathies
38
diagnosis of MDD is made when?
at least TWO major depressive episodes at least 2 months apart
39
brain metabolism changes associated with MDD?
orbitofrontal is hypermetabolic and dorsal prefrontal cortex is hypometabolic
40
what is hypomania?
mania but more mild, patient usually has insight and is without significant functional impairment.
41
cyclothymic disorder?
mypomania + depressive sx (that do not make criteria for MDD) that have been oscillating for 2+ years
42
schizo disorders based on time?
<1 mo: brief psychotic disorder 1-6mo: schizophreniform 6+: schizophrenia
43
difference between OCD and OCPD?
OCD has specific distinguishable obsessions.
44
conduct disorder vs antisocial personality disorder?
less than 18 vs over 18
45
MDD vs dysthymia/persistent depressive disorder
MDD is usually multiple episodes of depression with dysthymia is constantly chronically depressed.
46
Erikson's stages of development
47
Side effects of lithium
Tremor Nephrogenic DI (hyperNa) Hypothyroidism Pregnancy issues Acne
48
TMS for depression targets where in the brain
LEFT dorsolateral prefrontal cortex
49
MOA or ropinirole for RLS?
Dopamine agonist
50
papez circuit?
entorhinal cortex -> hippocampus -> fornix -> mammillary bodies ->anterior nucleus of thalamus -> cingulate gyrus -> entorhinal cortex
51
What is the first histologic sign of AD?
Amyloid deposition in cortical and leptomeningeal blood vessel walls, followed by : tangles,plaques, hirano bodies, etc
52
dorsomedial nucleus of the thalamus function
abulia anterograde amnesia social disinhibition (A-hole) motivation (a-motivation)
53
anterior nucleus of the thalamus
limbic system and memory formation for papez circuit
54
pulvinar nucleus of the thalamus?
processing visual info and sensory integration
55
VPL of thalamus?
sensory info of body
56
VPM of thalamus?
sensory info of face
57
akinetic mutism can be caused by?
bilateral globus pallidus interna lesions
58
triad and localization of Balint Syndrome?
Optic ataxia (difficult reaching for objects under visual guidance) oculomotor apraxia (inability to voluntarily move the eye muscles to a new point of fixation despite intact EOM) simultanagnosia (inability to visually perceive more than one object at a time)
59
transcortical motor aphasia
broca with intact repetiton (nonfluent, comprehending, and repeating)
60
transcortical sensory aphasia
wernicke with intact repetition (fluent, noncomprehending, repeating)