The nurse is caring for a postoperative patient who 30 minut…

The nurse is caring for a postoperative patient who 30 minutes prior to transfer from the perianesthesia unit (PACU) received an intravenous analgesic. Pain medication orders are for morphine 10 mg IM every 3 hours PRN. An hour after arrival on the nursing unit, the patient reports pain of 8 on a 0 to 10 pain scale. What action should the nurse take?