Coag 2 Flashcards

(37 cards)

1
Q

GP Ib/V/IX

A

how platelets attach to vWF

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2
Q

substances in delta granules

A

ADP
ATP
serotonin
Ca

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3
Q

GP IIb/IIIa

A

binds fibrinogen

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4
Q

GP IIb/IIIa inhibitors

A

abciximab
integrilin
aggrastat

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5
Q

diseases of primary hemostasis

A

Bernard-Soulier
Glanzmann
vWD

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6
Q

hematomas and hemarthroses due to defects in

A

secondary hemostasis

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7
Q

vWF made in

A

endothelial cells

megakaryocytes

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8
Q

negatively charged glass activaes

A

intrinsic pathway

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9
Q

tissue factor activates

A

extrinsic pathway

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10
Q

defects of pre-kalllikrein and kallikrein

A

increased PTT

no bleeding problem

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11
Q

factor 7 activates

A

10 and 9

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12
Q

tissue factor pathway inhibitor binds

A

factor 10a

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13
Q

thrombin converts

A

fibrinogen to fibrin

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14
Q

thrombin activates factors

A

5, 8, 11, 13

fibrinogen to fibrin

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15
Q

_______ cross-links fibrin

A

13

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16
Q

_____dissolves fibrin

17
Q

Plasminogen converted into plasmin by

A

tissue plasminogen activator

urokinase/streptokinase

18
Q

Inhibitors of fibrinolysis

A

TPA inhibitor
alpha-2-antiplasmin
TAFI (thrombin activatable fibrinolysis inhibitor)

19
Q

Protein C activated by

A

Thrombomodulin boud to thrombin

20
Q

Protein C and Protein S

A

inhibit factors 5 and 8

21
Q

antithrombin binds to ___ and inhibits___

A

binds to heparin

inhibits factors 2(thrombin),9,10,11,12

22
Q

PTT measures

A

all factors except 7 and 13

23
Q

INR calculation

A

(paient PT/normal mean PT)^ISI

24
Q

Factor 13 deficient labs

A

normal PT/PTT and platelets

25
increased PT only
Factor 7 deficiency/inhibitor coumadin liver dz dysfibrinoginemia
26
increased PTT only
heparin vWD deficiencies of 8, 9, 11 lupus anticoagulant
27
increased PT and PTT
``` liver dz vit K def coumadin or heparin DIC dysfibrinogenemia ```
28
increased PT and PTT with decreased platelets
DIC liver disease HIT
29
thrombin time measures
conversion of fibrinogen to fibrin
30
things that increase thrombin time
paraprotein heparin dysfibrinogenemia
31
reptilase time measures
fibrinogen to fibrin but insensitive to heparin
32
Increased reptilase time caused by
dysfibrinogenemia
33
time-dependent prolangation of mixing study seen in
factor 8 inhibitor
34
1st phase of platelet agg caused by
ADP release
35
2nd phase of platelet agg caused by
ADP and TXA2
36
biphasic platelet aggs (2)
ADP and epinephrine
37
what would cause loss of 2nd phase of platelet agg with ADP and epi
aspirin | storage pool defect