Coag 3 Flashcards

1
Q

Defect in Bernard-Soulier

A

GP Ib/V/IX (CD42)

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2
Q

photo of bernard-Soulier

A

Giant platelet with pseudonucleus

thrombocytopenia

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3
Q

labs in bernard-soulier

A

normal PT/PTT
thrombocytopenia
increased bleeding time
impaired platelet agg with RISTOCETIN

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4
Q

defect in Glanzmann

A

GP IIb/IIIa

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5
Q

labs in Glanzmann

A

normal platelets
impaired platelet agg with ADP, collagen, and Epi
clot retraction test + (no retraction)

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6
Q

May-Hegglin mutation

A

myosin heavy chain 9

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7
Q

May-Hegglin photo

A

Dohle body and giant platelets

little bleeding clinically

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8
Q

causes of giant platelets

A
May-Hegglin
Gray plts
Bernar-Soulier
Montreal
ITP
Mediterranean macrothrombocytosis
Sebastian, Flechner, Epstein, Alport
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9
Q

Storage pool deficiency

A

no 2nd wave with ADP or Epi

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10
Q

names of storage pool defects

A
Gray plt
Quebec 
Wiscott-Aldrich
Cheiad-Higashi
Hermansky-Pudlak
Thrombocytopenia with absent radii
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11
Q

small platelets

A

Wiscott-Aldrich

iron deficiency

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12
Q

missing in gray platelet syndrome

A

alpha granules

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13
Q

platelet agg in gray plt

A

blunted with everything but ADP and epi

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14
Q

diseases with no delta granules

A

Wiskott-Aldrich
Chediak-Higashi
Hermanski-Pudlak

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15
Q

“swiss-cheese” platelets

A

Hermansky Pudlak

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16
Q

Plt aff in Aspirin or NSAID

A

decreased 2nd wave to ADP and epi

no response to collagen and arachdonic acid

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17
Q

osler-Weber-rendu syndrome

A

oral telangiectasias
platelet type bleeding
iron def

18
Q

factor decreased in amyloidosis

A

factor 10

19
Q

hemophilia A

A

decreased factor 8

20
Q

hemophilia B

A

decreased factor 9 (christmas dz)

21
Q

molecular for hemophilia

A

Xq28

intron 22 inversion

22
Q

bethesda unit to activity

A

1=50%
2=25%
3=12.5%

23
Q

inhibitors more common in

A

hemophilia A

24
Q

hemophila C

A

factor 11 def (mild, AR)

25
Q

tests for factor 13 def

A

clot stability test

1% monochloracetic acid test

26
Q

deficiency where you can get anaphylaxis from trestment

A

Factor 9

27
Q

dysfibrinogenemia on mixing study

A

partial correction

28
Q

platele agg with afibrinogenemia

A

decreased ADP, epi, AA

29
Q

ddx if plt aff decreased with ADP, Epi, AA

A

afribinogenemia
Glanzmann
Aspirin
storage pool

30
Q

what vit K does

A

gamma-carboxylation of glutamine

31
Q

alpha-2-antiplasmin

A

decreased euglobulin lysis time

normal PT/PTT

32
Q

most common cause of thrombophilia

A

activated protein C resistance

33
Q

FV leiden mutation

A

Arg 506 Gln

34
Q

FV cambridge mutation

A

Arg 306 Threonine

35
Q

how does Protein C deficiency classically present

A

skin necrosisi with warfarin

neonatal fulminans

36
Q

decreased protein S during stress because

A

increased C4b (acute phase) with the Protein S binding protein

37
Q

decreased response to heparin

A

antithrombin III def

38
Q

most common anti-phospholipid specificities

A

B2-glycoprotein
anticardiolipin
lupus anticoagulant

39
Q

decreased platelets with thrombosis

A

antiphospholipid syndrome

HIT

40
Q

HIT antibodies to

A

PF4 in granules

41
Q

homocystinuria

A

AR, lens dislocaiton, MR, peripheral neuropathy, decreased folate