The nurse is monitoring a client who is receiving morphine for severe pain for signs of central nervous system depression. Which medication should the nurse prepare to administer if an adverse reaction to morphine occurs?
1. The agonist morphine
2. A drug with a longer half-life than morphine
3. A loading dose of antihistamines
4. An antagonist, such as naloxone (Narcan)
Answer: 4
1. Narcan is an antagonist. Morphine is an agonist.
2. A drug with a longer half-life takes longer to be eliminated and would not be used to counter the effects of morphine.
3. Antihistamines block histamines and are not used to counter the effects of morphine. A loading dose would not be beneficial.
4. Narcan is an antagonist and will reverse the effects of a narcotic such as morphine.
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