The nurse is providing preoperative education to a patient who will have surgery in several weeks. The patient denies taking anticoagulant medications but reports using herbal supplements. Which herb would cause the nurse to be concerned?
a. Echinacea
b. Ginkgo biloba
c. Kava
d. Sage
ANS: B
Ginkgo can prolong bleeding time and therefore should be discontinued 2 weeks prior to surgery.
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