Your client has been prescribed warfarin for the prevention of blood clots due to atrial fibrillation. Which statement by the client shows that the client understands their medication.

"If I miss a dose of my medication I can just double up the next day."

"I will eat broccoli and collard greens three times a week and I can have extra helpings to improve my iron intake."

"I will need to get frequent blood work to check the INR level, that shows if this medication is at the right dose."

"I should eat 1-2 bananas a day because this medication can cause me to loose potassium through my urine."