Warfarin

Question 1

what is warfarins relationship with vitamin k

Answer 1

antagonises it as it is associatate with the wors coumarins and phenidiones

Question 2

what is the main thing to know about warfarin?

Answer 2

takes up to 72 hours to have full effect

WARfarin - like WAR takes a long time to resolve

Question 3

what strength is the white tablet

Answer 3

0.5mg

Question 4

what strength is the brown tablet

Answer 4

1mg

Question 5

what strength is the blue tablet

Answer 5

3mg

Question 6

what strength is the pink tablet

Answer 6

5mg

Question 7

what are the two MHRA warning with warfarin

Answer 7

IF a patient has a painful rash an has any form of renal issue refer to GP as coul be a risk calciphylaxis

IF a patient uses miconazole concominantly there is an increase bleeing risk

Question 8

what is the antiote for wararin

Answer 8

vit k1

aka

phytomenidione

Question 9

what shoul a warfarin patient avoi

Answer 9

cranberry juice
pomegranate juice
iet change revolving aroun leafy greens
heavy rinkin
pregnancy

Question 10

what is the ose for MOST conitions warfarin treats

Answer 10

2.5

Question 11

what are the exceptions to the rule where the target goes to 3.5

Answer 11

recurrant PE / VT
mechanical prosthetic heart valves

Question 12

what is the acceptable range either sie of the target

Answer 12

0.5

Question 13

what happens if a patient is bleeing heavily on warfarin

Answer 13

stop

give iv phytomeniione

Question 14

what happens if a patient is bleeing minor on warfarin

Answer 14

stop

give iv phytomeniione

Question 15

what happens if patient not bleeing but just has high inr of 8+

Answer 15

give iv phytomeniione ORALLY

stop

Question 16

what happens if patient has inr between 5-8

Answer 16

stop 2 oses then regive

Question 17

what meicine can increase warfarin activity

Answer 17

miconazole
amioarone
bezafibrate

Question 18

what meicine can ecreses warfarin activirty

Answer 18

st john wart
alcohol
carbemazepine

Question 19

what meicine can cause blee with warfarin

Answer 19

aspirin

clopiogrel (higher with thsi)