likvordiagnostik Flashcards

1
Q

indikationer på LP

A
infektion, inflammation
minnesstörning
SAB efter MR
malignitet
barriärskada
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2
Q

kontraindikationer

A

ej vid expansiv process

ej om antikoagulantia

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3
Q

vad ingår i likvordiagnostiken

A
inspektion
tryckmätning
cellräkning
odling bakterier, svamp
serologi: virus, borrelia
cytologi
absorbans
parenkymskade markörer 
alubmin
IgG
isoelektriskt fokus: oligoklonala band
laktat
glukos
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4
Q

inspektion

A

klar < 200 x10^6 cellantal
mjölkig 200-700
grumlig > 700

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5
Q

tryck

A

< 100-200 mmHg

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6
Q

cellräkning

A

< 5x10^6
- mononukleära celler
men inga polynukleära

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7
Q

absorbans

A

görs vid misstanke om SAB
450 nm=bilirubin
415 nm=oxyhemoglobin

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8
Q

albuminkvot

A

mått på barriärskada
Lätt>10
medel 15-20
kraftig>20

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9
Q

intrathekal Ig produktion

A

<0.7

- korrigeras efter albumin

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10
Q

laktat

A

<2.1

- stiger vid bakteriell infektion, TBC, sarkoidos

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11
Q

vilka skademarkörer finns det?

A

NFL: neurofilament

NSE: neuronspecifika enolas
- kortikal skada

GFAp:
gliafibrillärt surprotein
- astrocyter

Tau:
AD, jakob creutzfelt

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12
Q

vad ser man vid infektion

A

poly, monopleocytos
laktat, glukos
isoelektrisk fokusering
odling, serologi

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13
Q

inflammation

A
monopleuocytos
isoelektrisk fokusering
skademarkör
cytokiner
ACE
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14
Q

GBS

A
normalt tryck
klar/svag gul
celler: normalt, monopleocytos
hög albuminkvot
IgG ökat
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15
Q

MS

A
normalt tryck
grumligt
lätt monopleocytos (5-50)
albumin kan var hög
IgG - alltid oligoklonala band
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16
Q

SAB

A
ökat tryck
röd/gul
absorbans
ery över 10k
albuminkvot hög
17
Q

borrelia

A

klar, mjölkig
mono: 50-500
aluminkvot hög men varierande
IgG