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Cardio > Arrhythmias > Flashcards

Arrhythmias Flashcards

1
Q

Therapeutic INR levels

A

2 - 3

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2
Q

Causes of low INR

A

Medication adherence
Medication interactions
Change in diet - foods high in Vitamin K
Perscription of Warfarin was too low

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3
Q

Increases one’s INR by inhibiting CYP 2C9

A 
Amiodarone
Trimethoprim/sulfamethoxazole
Metronidazole 
Fluconazole
Diltiazem
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4
Q

Decreases in INR

A

Carbamazepine

Spinach

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5
Q

Mechanism of Warfarin

A

Inhibits the regeneration of vitamin K dependent clotting factors (II, VII, I, X) and anticoagulant protein C and S

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6
Q

Increase in Warfarin

A

Increase in INR - take longer to clot

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