ANTICOAGULANTS, ANTIPLATELET, THROMBOLYTICS (EXAM 2) Flashcards

(42 cards)

1
Q

function of anticoagulant

A

prevents the formation of clots that inhibit circulation

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2
Q

function of antiplatelet

A

prevent platelet aggregation

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3
Q

function of thrombolytics

A

attack and dissolve blood clots that have formed

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4
Q

what might a clot in an artery or vein

A

decrease circulation
platelet aggregation
blood coagulation

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5
Q

arterial clot formation

A

platelet initiate process
fibrin formation occurs
RBC are trapped in fibrin mesh

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6
Q

venous clot formation

A

platelet aggregation with fibrin that attaches to RBC

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7
Q

Anticoagulant action

A

prevent the formation of new clots

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8
Q

Anticoagulant use

A

DVT
PE
MI
Artificial heart valves
Stroke

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9
Q

what does anticoagulants not do

A

dissolve clots that are already formed

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10
Q

Anticoagulant admin

A

PO
subq
IV

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11
Q

Heparin is a

A

anticoagulant

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12
Q

heparin action

A

antithrombin 3
inhibit action of thrombin
inhibit conversion of fibrinogen to fibrin
inhibit clot formation

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13
Q

heparin is used to

A

prevent thrombosis

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14
Q

administration of heparin

A

sub q
IV

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15
Q

heparin antidote

A

protamine sulfate

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16
Q

side effect of heparin

A

bleeding

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17
Q

low molecular weight heparin action

A

inactivate Xa factor
less able to activate thrombin

18
Q

use of low molecular weight heparin

A

prevent DVT
acute PE after orthopedic or abdominal surgey

19
Q

how is heparin different from lower molecular weight heparin

A

they have a lower risk of bleeding

20
Q

precautions of LMW heparin

A

do not take with aspirin
frequent lab monitoring is not required

21
Q

why shouldnt you take LMW heparin with aspirin

A

aspirin is already a blood thinner= increase risk of bleeding

22
Q

do you have to do frequent monitoring of labs with LMW heparin

23
Q

direct thrombin inhibitors action

A

they inhibit thrombin from converting fibrinogen to fibrin

24
Q

direct thrombin inhibitors use

A

prophylaxis
treatment of dvt
unstable angina
stroke

25
direct thrombin inhibitors admin
sub q IV
26
oral anticoagulants action (WARFARIN)
inhibit hepatic synthesis of vitamin K which affects clotting factors 2,6,9 and 10
27
oral anticoagulants use (WRFARIN)
prevent thromboembolic condition PE embolic formation
28
how do you monitor the therapeutic range (WARFARIN)
PT INR
29
antidote of warfarin if there is overdose
vitamin k
30
how long does vitamin k take to be effective
24-48 hours
31
factor Xa inhibitors
prevent DVT and PE some do not require routine coagulation administered 1x or 2x daily
32
what should you monitor with heparin
PTT
33
what should you monitor with warfarin
INR PT
34
what should you examine with anticoagulants
pt nose, mouth, skin and urine for bleeding
35
what should you teach the patients with anticoagulants
inform dentist use soft toothbrush avoid large intake of green, leafy veggies
36
Antiplatelet action
suppress platelet aggregation
37
Antiplatelet uses
prevent thrombosis prevent MI or stroke for patients with familiar history prevent repeat MI prevent stroke for pt with transient ischemic attacks
38
aspirin
low dose therapy effective and inexpensive for suppressing platelet aggregation
39
aspirin is a
antiplatelet
40
aspirin action
inhibit cyclooxygenase, an enzyme needed by platelets to synthesize thromboxane
41
aspirin use
prevention of MI and thromboembolism prevent stroke
42