Final answer:
The nurse should administer Naloxone to counteract the respiratory depression caused by morphine.
Step-by-step explanation:
The nurse should administer Naloxone.Respiratory depression is a common side effect of morphine, and a respiratory rate of 8/min indicates severe respiratory depression. Naloxone is an opiate antagonist that reverses the effects of morphine by competing for the same receptors in the brain. By administering naloxone, the nurse can counteract the respiratory depression and restore normal breathing.It's important to note that naloxone has a short duration of action and must be administered via the parenteral route.