The nurse is providing discharge teaching to a client who has been prescribed warfarin for the first time. Which of the following statements made by the client indicates a need for further teaching? (Select all that apply)

"I will need to have my PTT levels checked regularly."

"I will try to keep my intake of leafy green vegetables consistent."

"I will use a soft toothbrush and electric razor."

"If I miss a dose, I will take double the next day."

"I will avoid taking aspirin or ibuprofen while on this medication."