The nurse is preparing to administer newly prescribed warfarin to a client who has a deep venous thrombosis and is receiving IV heparin. The client states, "I am already receiving heparin." Which of the following responses would be appropriate for the nurse to make?
1. Both medications will be administered until a therapeutic anticoagulation level is achieved.
2. The heparin infusion will be discontinued after you receive the first dose of warfarin.
3. The two medications will work together to break apart the clot in your leg.
4. "I will clarify the prescription for warfarin with your health care provider.