A Patient Has a Cancer That Has Been TNM Staged

A patient has a cancer that has been TNM staged as T3 (1-4: size of primary tumor) ,N2 (0-3: degree of spread to regional lymph nodes) ,and M2 (0-1: presence of metastasis) .He has a as needed (PRN) order of 4 mg morphine,intramuscularly (IM) every 3 to 4 hours.He requests another pain shot approximately 2 3/4 hours after the last one.An appropriate nursing action would be to:

A) Inform the patient that this narcotic may be given only every 4 hours to prevent addiction.
B) Ignore the call bell for 20 minutes, and then take at least 10 minutes to prepare and administer the injection.
C) Give the morphine, and evaluate the results of pain relief. Arrange for the physician to evaluate for breakthrough pain.
D) Ask the family to assist in helping the patient accept waiting longer to receive an addicting medication such as morphine.