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Year 2 PCM IV final > Neuro, Told 5 Q > Flashcards

Neuro, Told 5 Q Flashcards

1
Q

CSF P

A
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2
Q

CSF P

A
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3
Q

CT should preceed spinal tap except

A

if meningitis suspected

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4
Q

bevel size for spinal tap

A

short

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5
Q

low CSF pressure

A

below 7 cm

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6
Q

what can cause low CSF P

A

hypo production
distal to occlusion
spinal leak
spinal cord tumor

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7
Q

caues of high CSF

A

hyper production
proximal to occlusion
malabsorption of spinal fluid
obesity- pseudo tumor cerebri

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8
Q

CSF pinkish “cherry limeade”

A

new bleeding

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9
Q

CSF light yellow

xanthochromic

A

old blood pigments

remote bleeding

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10
Q

RBC or WBC count that makes CSF cloudy

A

> 200 WBC

>400 RBC

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11
Q

neutrophil in CSF

A

infection, bacterial

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12
Q

lymphocytes in CSF

A

viral or fungal infection

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13
Q

monocyte in CSF

A

chronic conditions

macrophages

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14
Q

glucose in CSF

A

never below 80% of blood glucose

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15
Q

protein in CSF

A

less than 45 mg/dL

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16
Q

type of space epidural

A

potential

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17
Q

cervical trauma XR

A

see all cervical vertebrae and t1

straight lines

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18
Q

when is CT useful for head injury

A

hemorrhages
spinal fractures
kidney stones
tumor and abscess need IV contrast

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19
Q

PET

A

detects sugar + positron gamma radiation

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20
Q

field of T1

A

relaxation longitudinal to magnetic field

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21
Q

field of T2

A

relaxation transverse to magnetic field

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22
Q

solid mass color in T1 vs T2

A

T1 dark

T2 bright

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23
Q

subactue blood in T1 T1

A

bright

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24
Q

acute and chronic blood in T1 vs T2

A

T2 dark

T1 gray

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25
fat in T1 T2
T1 bright | T2 dark
26
What is dark in T1 MRI
CSF water low proton density:calcification flow void
27
what is bright in T1 MRI
``` fat subacute hemorrhage melanin protein rich fluid slow flowing blood gadolinium laminar necrosis of infarct ```
28
what is dark on T2 MRI
low proton density: calcificaiton, fiborus tissue | paramagnetic substances: deoxyHb, methHb, iron, hemosiderin, melanin
29
what is bright on T2 MRI
increased water | subacture hemorrhage extracell methHb
30
CT should preceed spinal tap except
if meningitis suspected
31
bevel size for spinal tap
short
32
low CSF pressure
below 7 cm
33
what can cause low CSF P
hypo production distal to occlusion spinal leak spinal cord tumor
34
caues of high CSF
hyper production proximal to occlusion malabsorption of spinal fluid obesity- pseudo tumor cerebri
35
CSF pinkish "cherry limeade"
new bleeding
36
CSF light yellow | xanthochromic
old blood pigments | remote bleeding
37
RBC or WBC count that makes CSF cloudy
>200 WBC | >400 RBC
38
neutrophil in CSF
infection, bacterial
39
lymphocytes in CSF
viral or fungal infection
40
monocyte in CSF
chronic conditions | macrophages
41
glucose in CSF
never below 80% of blood glucose
42
protein in CSF
less than 45 mg/dL
43
type of space epidural
potential
44
cervical trauma XR
see all cervical vertebrae and t1 | straight lines
45
when is CT useful for head injury
hemorrhages spinal fractures kidney stones tumor and abscess need IV contrast
46
PET
detects sugar + positron gamma radiation
47
field of T1
relaxation longitudinal to magnetic field
48
field of T2
relaxation transverse to magnetic field
49
solid mass color in T1 vs T2
T1 dark | T2 bright
50
subactue blood in T1 T1
bright
51
acute and chronic blood in T1 vs T2
T2 dark | T1 gray
52
fat in T1 T2
T1 bright | T2 dark
53
What is dark in T1 MRI
CSF water low proton density:calcification flow void
54
what is bright in T1 MRI
``` fat subacute hemorrhage melanin protein rich fluid slow flowing blood gadolinium laminar necrosis of infarct ```
55
what is dark on T2 MRI
low proton density: calcificaiton, fiborus tissue | paramagnetic substances: deoxyHb, methHb, iron, hemosiderin, melanin
56
what is bright on T2 MRI
increased water | subacture hemorrhage extracell methHb
57
what is bright on T2 MRI
increased water | subacture hemorrhage extracell methHb
58
what is a FLAIR MRI
fluid attenuated inversion recovery edema and gliosis are HTN T2 MRI with spinal fluid blanked out
59
CT scans best for
cerebral bleeding absecesses all fractures
60
CSF protein really high
guillain barre

Year 2 PCM IV final (6 decks)

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