Immunology Flashcards

1
Q

NK cells are part of what immunity

A

innate - don’t require prior learning to know which cells to kill

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2
Q

complement system and lectin pathyway

A

allows bacteria to be better eliminated by coating sugars on their surface through binding proteins such as MBL

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3
Q

LNs and spleen are what

A

clearing zones where foreign material presented by dendritic cells can result in rapid degeneration of lymphocytes highly selective for the microbe bearing that material

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4
Q

The formation of memory B cells accounts for what

A

rapid production of IgG at re exposure to a microbe after vaccination

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5
Q

Why can infections sustained in severe combined immunodeficiency resemble that of advanced stage HIV

A

because CD4 T helper cells are massively reduced in both conditions

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6
Q

why do old people get shingles

A

because they have immune senicence

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7
Q

granulomas are formed as a what

A

protective encasement by the interplay of interferon gamma secreting T lymphocytes and Interlukin 12 secreting macrophages

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8
Q

biologics such s Anti TNF represent a form of what

A

passive immunisation

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9
Q

delayed hypersensitive lumps together various pathologies such as

A

contact h/s
granulomatous reactions
complex immune dysfunction

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10
Q

multiple episodes of small infections which resolve with antibiotics and rest
15yo

A

common variable immunodeficiency

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11
Q

what aspects are essential to explore either primary or secondary immunodeficiency

A

detailed account of diet
smoking status
fam hx of DM and infections

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12
Q

ANA levels are good for what and not so good for what

A

good for auto immune causes

not so good for immunodefic

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13
Q

ANA levels are never indicated in who

A

someone with lots of infections

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14
Q

patients with asplenia should get what

A

regular inactivated vaccinations against pneumonia, HI, meningitis and influenza

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15
Q

what kinds of vaccinations are contraindicated in asplenia

A

live vaccine

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16
Q

main risk in asplenia

A

viral not bacteria

17
Q

what bacterial infections does asplenia predispose to

A

HI
S pneumonia
N meningitis because clearance of opsonised bacteria by splenic macrophages is absent

18
Q

metho not given in what

A

liver cirrhosis

19
Q

psoriasis is what kind of disorder

A

primary a b cell mediated hyper immune disorder

20
Q

contraindication to immunosuppression

A

cancer