Clinical skills Flashcards
1
Q
What are is the target INR for warfarin therapy in MOST conditions?
A
2-3 (ideal is 2.5)
No benefit below 2
High risk over 4.5
2
Q
How long should warfarin be continued for in DVT?
A
6-weeks for symptomatic DVT
3-6 months for proximal DVT occurring after surgery of limited illness
6+ months for DVT with no obvious precipitating factor, or proven recurrent thromboembolism.
3
Q
Which indications for warfarin have a target INR range of 2.0-3.0?
A
Preventing DVT Therapy after DVT or TE Afib Valvular defect Post AMI Tissue heart valve replacement
4
Q
Which indication for warfarin have a target INR range of 2.5-3.5?
A
Mechanical prosthetic valve (aortic)
5
Q
Which indications for warfarin have a target INR range of 3.0-4.5?
A
Mechanical prosthetic heart valve + high risk
Preventing recurrent AMI
Antiphospholipid antibody syndrome
