For best results when treating severe pain associated with pathologic spinal fractures related to metastatic bone cancer, the nurse should remember that the best type of dosage schedule is to...

For best results when treating severe pain associated with pathologic spinal fractures related to metastatic bone cancer, the nurse should remember that the best type of dosage schedule is to administer the pain medication a as needed. b around the clock. c on schedule during waking hours only. d around the clock, with additional doses as needed for breakthrough pain.