Posted: September 5th, 2017

A patient who has had a previous stroke and is taking warfarin tells the nurse that he started taking garlic to help reduce his blood pressure. The nurse knows that garlic when taken together with warfarin

A patient who has had a previous stroke and is taking warfarin tells the nurse that he started taking garlic to help reduce his blood pressure. The nurse knows that garlic when taken together with warfarin:

a) can greatly increase the international normalization ratio (INR) and therefore increase the risk of bleeding.
Garlic and warfarin taken together can greatly increase the INR, increasing the risk of bleeding.
b) have no drug-drug interactions and therefore may be taken together.
Garlic and warfarin taken together can greatly increase the INR, increasing the risk of bleeding.
c) can cause platelet aggregation and therefore increase the risk of blood clotting.
Garlic and warfarin taken together can greatly increase the INR, increasing the risk of bleeding.
d) may increase cerebral blood flow causing migraine headaches.
Garlic and warfarin taken together can greatly increase the INR, increasing the risk of bleeding.