Why does a patient who had a thrombotic incident receive both heparin and Coumadin for 4-5 days before heparin is discontinued?
a. Heparin is not effective as an anticoagulant without Coumadin.
b. Coumadin requires heparin for its full anticoagulant effect.
c. Coumadin and heparin have a synergistic effect
d. Coumadin 's full effect is not achieved for 4- days after initiation because of the half-life of the vitamin K coagulation factors.
Correct Answer: D
Health Professions
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