A nurse is monitoring a client who received naloxone to counteract the effects of an opioid overdose. Which of the following findings should indicate to the nurse that the medication is effective?

A. Increased respiratory rate: Naloxone reverses respiratory depression caused by opioids, so an improvement in respiratory rate indicates effectiveness. B. Report of decreased pain: Naloxone reverses opioid effects, including pain relief. Pain might increase, not decrease, following naloxone administration. C. Increased temperature: Naloxone does not directly affect body temperature. D. Decreased blood pressure: Naloxone is not associated with a direct effect on blood pressure; instead, it reverses opioid-induced hypotension.