A nurse is educating a group of clients about the contraindications of warfarin therapy. Which of the following statements should the nurse include in the teaching?

"Clients who have glaucoma should not take warfarin."

"Clients who are pregnant should not take warfarin."

"Clients who have hyperthyroidism should not take warfarin."

"Clients who have rheumatoid arthritis should not take warfarin."