Final answer:
Warfarin is a contraindication for cataract surgery due to its effects on blood clotting.
Step-by-step explanation:
The nurse should recognize that Warfarin is a contraindication for cataract surgery and the provider should be notified. Warfarin is an anticoagulant medication, which inhibits blood clotting. Surgery, including cataract surgery, carries an increased risk of bleeding for patients taking anticoagulants. Therefore, it is important to discontinue or adjust the dosage of the medication prior to surgery to minimize bleeding complications.