A nurse is educating a client about a new prescription for morphine. Which of the following statements should the nurse include in the teaching about this medication?

The correct answer is B: Morphine acts as an agonist on the mu and kappa receptors. This statement is important to include in the teaching because it explains how morphine works pharmacologically by binding to specific opioid receptors (mu and kappa receptors) to produce its analgesic effects. Understanding this mechanism of action is crucial for the client to grasp how the medication alleviates pain.
Incorrect Answers:
A: Morphine actually has a high potential for abuse and can cause significant euphoria.
C: Morphine is a potent analgesic and is generally more effective than butorphanol.
D: Morphine is primarily used for pain relief, not to prevent fevers.