A 20-year-old male, Cody, arrives at the emergency departmen…

A 20-year-old male, Cody, arrives at the emergency department by ambulance. He is unconscious, with slow respirations and pinpoint pupils. There are “tracks” visible on his arms. The friend, Ralph, who came with him reports that Cody had just “shot up dope” when he became unconscious. Which medication would the nurse most likely expect to administer?