Day 1 Flashcards

1
Q

Class I MHC

A

Recognition of endogenous antigens

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2
Q

Class II MHC

A

Recognition of exogenous antigens

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3
Q

Class II MHC

A

involved in Complement system

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4
Q

B cells form?

A

Plasma cells that secrete immunoglobulin

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5
Q

CD8 = which MHC class?

A

Class 1

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6
Q

CD8 is which type of T cell?

A

Cytotoxic

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7
Q

CD4 cell = which MHC class?

A

Class II

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8
Q

CD4 is which type of T cell?

A

Helper T cell

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9
Q

Anergy

A

State of immunologic tolerance to Ag

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10
Q

ESR

A

Erythrocyte Sedimentation Rate
Increase w/ age and in women
Elevated in obesity

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11
Q

Which 2 conditions is ESR useful for?

A
Polymyalgia rheumatica (>40)
Giant Cell Arteritis (>90)
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12
Q

CRP

A

C-reactive protein
Acute phase protein made by liver.
DIrect measure of reactants

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13
Q

RF

A

Rheumatoid Factor

80% sensitivity in RA pts

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14
Q

RF has lots of false?

A

Positives

Patient must have high pre-test probability for best diagnostic value

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15
Q

Anti-CCP

A

Citrulline Antibody
Associated w/ RA
Greater specificity

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16
Q

ANA

A

Anti-nuclear antibodies
Indicate systemic autoimmune dz
Sensitive for SLE, but also many other diseases

17
Q

Anti-dsDNA

A

Specific for SLE

60-70%

18
Q

Anti-Sm

A

Highly specific for SLE

19
Q

ACA

A

Anti-centromere antibody

Associated w/ CREST and scleroderma

20
Q

Anti-topoisomerase

A

Associated w/ diffuse scleroderma

21
Q

Anti-Ro and La

A

Associated w/ sjogrens

22
Q

Anti-U1 snRNP

A

Nonspecific

Part of criteria for mixed connective tissue dz

23
Q

Anti-Jo-1

A

Specific for myositis with interstitial lung dz.

Raynauds

24
Q

Low C3 and C4

A

Seen in active SLE

25
Q

ANCA

A

Vasculitis

26
Q

HLA B27 disorders

A
Ankylosing Spondylitis (90%)
Reactive arthritis (Reiters, 80%)
Enteropathic Spondylitis (75%)
Psoriatic Spondylitis (50%)
27
Q

Uric Acid

A

Gout

28
Q

CREST Syndrome

A
Calcinosis
Raynaud's syndrome
Esophageal dysmotility
Sclerodactyly
Telangiectasia
29
Q

CREST syndrome antibodies

A

ANA

Anti-centromere Ab

30
Q

Scleroderma tests

A

Eosinophilia (100%)

ANA

31
Q

Bamboo spine =

A

ankylosing spondylitis