The Nurse Assesses a Patient Who Is Receiving Morphine Sulfate

The nurse assesses a patient who is receiving morphine sulfate intravenously using a patient-controlled analgesia pump. The nurse notes somnolence and respiratory depression, which are signs of morphine toxicity. The nurse will prepare to administer naloxone (Narcan) because it:

A) has synergistic effects with morphine.
B) is a narcotic agonist.
C) is a narcotic antagonist.
D) potentiates narcotic effects.