Final answer:
The nurse should anticipate the prescription of Naloxone for a client with decreased respiratory rate due to morphine administration via PCA pump, as Naloxone reverses opioid-induced respiratory depression.
Step-by-step explanation:
The student is asking about a scenario where a client is receiving morphine via a PCA (Patient-Controlled Analgesia) pump for pain management after surgery. Noticing a low respiratory rate (RR) of 9, it is a sign of opioid-induced respiratory depression, a common side effect of narcotics like morphine. In such cases, the medication that healthcare providers typically prescribe is Naloxone, an opiate antagonist. Naloxone works by rapidly reversing the effects of opioids and is often used in emergencies to treat a narcotic overdose in order to restore normal respiration in a person experiencing respiratory depression due to opioids.
Naloxone is effective in antagonizing the actions of morphine at all its receptors, making it the appropriate choice over Flumazenil, Acetylcysteine, and Glucagon, which work on different substances or conditions. Flumazenil is an antagonist that reverses the effects of benzodiazepines, not opioids. Acetylcysteine acts as an antidote for acetaminophen overdose, and Glucagon is used in cases of severe hypoglycemia or beta-blocker overdose. Hence, the correct answer to the student's question is A. Naloxone.