A Patient Receives Morphine and Shows Signs of Toxicity

Multiple Choice

A patient receives morphine and shows signs of toxicity. The prescriber orders naloxone [Narcan] to reverse the effects of the morphine. The nurse understands that the naloxone reverses morphine toxicity by which action on morphine receptor sites?

A) Blocking transmitter reuptake
B) Inhibiting transmitter release
C) Interfering with transmitter storage
D) Preventing activation of receptors