When the nurse administers warfarin it is expected that the drug will have what effect on the body?
A) Decrease in production of vitamin K–dependentt clotting factors
B) Increase in prothrombin
C) Increase in vitamin K–dependent factors in the liver
D) Increase in procoagulation factors
A
Feedback:
Warfarin, an oral anticoagulant drug, causes a decrease in the production ovitamin K–dependent clotting factors in the liver. The eventual effect is a depletion of these clotting factors and a prolongation of clotting times. It is used to maintain a state of anticoagulation in situations in which the patient is susceptible to potentially dangerous clot formation. It does not increase prothrombin, vitamin K–dependent factors in the liver, or procoagulation factors.
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