A 56-year-old man with a 20-year history of chronic ...
These questions seem unfair to test because they are based on experimental data. Guess they are there to limit a perfect score.
I just read it as patients take opioids to blunt or control pain. So if the electrode does the same thing (decrease pain), then an antagonist of opioids (naloxone) would bring the pain back? Idk if that reasoning is sound but that's the logic I used, I didn't even think of it as experimental.
Also its the only one that's an opioid antagonist from the list!
they are writing these questions in an evidence-based manner because the questions in medicine cannot be produced by a self imagination or logic. But that doesn't mean that we have to know their exact evidence like this question. we can use our own basic knowledge and adjust it with logic. so opioids have an analgesic effect in the body and naloxone can revert it.