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DEN 303 - PBL > Warfarin > Flashcards

Flashcards in Warfarin Deck (14)
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1

What is warfarin?

Anticoagulant - acts as antagonist to vit K dependent clotting factors

2

How check INR/ Warfarin levels?

Pt should carry book

3

What is ramipril?

ACE inhibitor Used for the tx of hypertension - lowers blood pressure

4

What is nifedipine?

Calcium channel blocker Used to tx high blood pressure

5

What is bendroflumethiazide?

Diuretic - tx hypertension

6

What is INR?

International normalised ratio - measure of how long blood takes to clot

7

What are the target range for INR?

Needs to be taken 24 hrs before (72 hours in stable pt)
INR less 4 - able to tx
INR greater than 4 - delay or refer

8

Can warfarin be stopped?

No - risk of serious embolism w/ temp cessation of warfarin

9

How to manage warfarin pt?

Before - check INR
Post-op - local measures, careful instruction

10

Precautions w/ warfarin?

Abs - warfarin metabolised by liver - some ab can inhibit cytochrome P450 - warfarin not metabolised increasing INR

11

What are some reasons for raised INR?

Too much anticoagulant
Other medication: aspirin, NSAIDs, ab
Health condition
Sudden decrease vit K in diet

12

How long is oozing from socket normal?

Low level fro 12-24 hrs - anything beyond requires investigation

13

How to investigate ongoing bleed?

Important to find out when bleeding began - is small amount or mouth filling with blood
Exacerbations - mouth rinsing, fingers
Have tried simple haemostat measures

14

What is clicking?

Replacement valve - ball valve