A nurse is reinforcing teaching with a client who is postpartum and receiving warfarin for deep-vein thrombosis. Which of the following instructions should the nurse include?

You should not take oral contraceptives while taking this medication.

Use a disposable razor for shaving while taking this medication.

You will be able to stop taking this medication in 2 weeks.

Take 650 milligrams of aspirin for leg discomfort.