The Nurse Is Caring for a Patient with Metastatic Bone

The nurse is caring for a patient with metastatic bone cancer. The patient asks the nurse why he has had to keep getting larger doses of his pain medication, although they do not seem to affect him. What is the nurses best response?

A) Over time you become more tolerant of the drug.
B) You may have become immune to the effects of the drug.
C) You may be developing a mild addiction to the drug.
D) Your body absorbs less of the drug due to the cancer.