Hockermanm Flashcards

(45 cards)

1
Q

what is the substrate protein for factor IIa?

A

fibrinogen/fibrin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Hemophillia A is a deficiency in what

A

8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Hemophillia B is a deficiency in what

A

9

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

where are clotting factors produced?

A

liver (except von Willebrand)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

where is von Willebrand produced?

A

endothelium, subendothelium, megakaryoctyes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

liver disease can have a _____ effect on anticoag

A

unpredictable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

recalcification (bleeding time)

A

2-4 minutes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

aPTT time and use

A

26-33 seconds
test heparin efficacy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

prothrombin time PT

A

11-14 seconds
test warfarin efficacy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

warfarin inhibits factors __

A

2, 7, 9, 10, protein C and S

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

drugs that increase warfarin effect
increase INR

A

broad spectrum antibiotics
metronidazole, amiodarone, fluconazole, bactrim, ciprofloxacin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

drugs that decrease warfarin effect decrease INR

A

rifampin
vitamin K

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

warfarin overdose? no major bleeding

A

vitamin K if INR >10

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

warfarin overdose? major bleeding

A

prothrombin complex concentrate with vitamin K

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

heparin reversal agent

A

protamine sulfate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

reversal agent for apixaban and rivaroxaban

A

andexanent alpha

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

black box warning andexanet alpha?

A

thrombolytic events

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

peptide of leach saliva gland

A

hirudin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

lepirudin binding?

20
Q

bivalirudin binding?

21
Q

argatroban binding

22
Q

dabigatran reversal agent

23
Q

what kind of molecule is tPA

A

serine protease

24
Q

what does plasmin do?

A

proteolytic enzyme that digests fibrin and fibrinogen

25
what is tPA inhibited by?
PAI-1 and PAI-2
26
indications for thrombolytic therapy
MI, ischemic thrombolytic stroke, PE
27
fibrinolytic drugs
alteplase, reteplase, tenecteplase
28
which fibrinolytic has mutations
tenecteplase
29
what do the mutations in tenecteplase do?
increase 1/2 life reduce inhibition by PAI enhance activity at thrombi
30
which fibrinolytic does not bind fibrin directly?
reteplase
31
antifibrinolytic drugs
aminocaproic acid tranexamic acid
32
three molecules secreted by platelets
TXA2 ADP 5 HT
33
vasoconstricters?
TXA2 and 5 HT
34
GP IIb/IIIa role
bind fibrinogen and then fibrinogen crosslinks platelets together to form a clot
35
what does aspirin do
COX-1 inhibitor which decreases TXA2 irreversible inhibition prophylaxis and treatment of arterial thromboembolic disorders
36
selective cox 2 inhibitors have what risk
cardiovascular risk since they don't prevent synthesis of TXA2
37
prasurgel risks
bleeding, dont use in old
38
ticagrelor binding
reversible
39
clopidogrel and prasugrel binding
irreversible
40
which adp inhibitros are prodrugs
clopidogrel and prasugrel
41
prasugrel cyps
esterases and CYP 3A4/2B6
42
absiximab increased risk of
bleeding
43
absiximab half life
long
44
vorapaxar
PAR inhibitor reversible
45
PDE3 inhibitors?
cilostazol, dipyridamole, oppose P2Y12 action