Which monitoring is essential after naloxone administration?

• A. Respiratory rate
• B. Blood pressure
• C. Temperature
• D. Pain level

Answer: (A)

The most important thing to monitor after naloxone is breathing. Naloxone reverses opioid-induced respiratory depression, so you need to watch respiratory rate and effort closely to ensure the person is ventilating adequately. Because naloxone’s effect can wear off sooner than the opioid’s, there’s a risk of re-narcotization, so ongoing respiratory assessment is essential until the patient remains stable. While blood pressure, temperature, and pain level may change after reversal, they don’t directly indicate whether ventilation is safe, making respiratory status the critical focus. Keep airway support ready and monitor oxygen saturation and mental status as part of the overall assessment.